wavewatch3.v4.18安装使用教学教程(浙江海洋大学修改于2016年度0322)

.Wavewatch3.v4.18在服务器上安装使用教程浙江海洋学院盛叶新鉴于wavewatch3.v4.18的安装仅限于一本全英文的mannul手册，网络上没有任何有帮助的安装教程以及使用教程。因此，我于2015年10月在浙江海洋大学学习wavewatch3.v4.18时，在中国海大的两位师兄的帮助下成功安装了模式，仅针对我们学校的某个服务器安装的一些问题和步骤进行下列总结。一、环境变量设置安装ww3之前需要加载编译器并设置环境变量，不同的服务器有不同的加载方式，一般情况下使用modulelist查看当前已加载编译器，moduleavail查看可加载编译器，moduleloadname加载name编译器。安装ww3需要加载ifort、icc和openmpi-Intel（注意：使用openmpi-Intel是因为我们的集群上安装的是这个，其他mpi有关的编译器没有使用过，所以不太清楚）三个编译器。但我使用的服务器上不可使用module命令（具体原因和服务器配置有关，我没有权限深究，此处不做详解），因此我们设置环境变量文件.bashrc文件。在修改之前，使用whichifort、whichicc和whichmpirun查看三个编译的安装目录。根目录下输入vi.bashrc添加如下代码：exportPATH=$PATH:/(使用查找出来的ifort和icc安装目录)/bin/(可能发生ifort和icc是同一个目录，此处填写该目录)exportPATH=$PATH:/(使用查找出来的mpi安装目录)/binexportLD_LIBRARY_PATH=/(使用查找出来的mpi安装目录)/lib/:$LD_LIBRARY_PATH此时环境变量则修改完毕，记得使用source.bashrc加载设置好的环境变量，然后继续完成安装。二、ww3安装和编译1.安装个人建议直接上传ww3的压缩文件，这样可以节约时间，也可先在windows下解压后在上传，最好是建立一个新的文件夹，这样不会发生文件找不到的情况。我提供的是4.18版本，文件夹示例：/public/home/shao002113/wwatch3.v4.18上传完毕后，按如下步骤进行：（注意空格）tarxvfwwatch3.v4.18-C/public/home/shao002113/wwatch3.v4.18cdwwatch3.v4.18chmod+xinstall_ww3_tar./install_ww3_tar接下来进入安装了，他会问你一些问题，让你选择（y/n）的时候基本都是y。有一个是选择安装模式，一个是L一个是G，安装选择G，然后有些设置需要修改，如下：Printerforlistings[printer]:printerCompilerforaux.[f77]:ifortCompilerforaux.[cc]:iccScratchspace[/tmp]：这是一个关于tmp文件夹的设置，第一次安装不用修改Savesourcecodefiles:yesSavelistingfiles:yes之后出现的一律选择yes，会显示安装结束end。2.添加环境变量在根目录下输入命令：vi.bashrc在文本中添加：exportPATH=$PATH:/(ww3完整安装目录)/binexportPATH=$PATH:/(ww3完整安装目录)/exe保存并退出。根目录下输入命令：source.bashrc（这是修改.bashrc后的必要步骤）。验证路径是否添加成功，根目录下输入whichw3_make.若成功修改，则会出现ww3完整目录。3.修改comp、link、switch进入bin文件夹，将comp.Intel和link.Intel

复制成comp和link即：cpcomp.Intelcompcplink.Intellink使用vi编辑器修改comp和link。修改如下：comp中（大约96行处）修改成如下if["$mpi_mod"='yes']thencomp=mpiifortwhichmpiifort1>/dev/null2>/dev/nullOK=$?if[$OK!=0]thencomp=mpif90fielsecomp=ifortfilink中（大约104行）修改成如下if["$mpi_mod"='yes']thencomp=mpiifortwhichmpiifort1>/dev/null2>/dev/nullOK=$?if[$OK!=0]thencomp='mpif90'fiopt="-O3-o$prog"elsecomp=ifortfiswitch中把SHRD改为MPIDIST(注意此处空格，否则会出错)。三个文件修改完毕后给予执行权限。chmod+ucomplinkswitch4.运行make_MPI直接输入命令make_MPI即可。如果没有错误显示则编译成功，一般会出现两个错误，但不影响模式的运行计算，到此ww3安装编译成功。三、数据提取WW3对于输入数据文件的类型没有固定要求，本人常用的是风场为dat文件，地形为ASCII文件。那么输入数据的格式有着一定的要求。对于风场来说，数据排列方式如下：第一行是时间，如2015年6月1日0点0时0分，则写为：20150601000000（注意年月日和时分秒之间存在空格）。接下来是两个矩阵，第一个是风场u，第二个是风场v。接下来是地形，说是地形，其实就是水深，大于等于0的设为无效值就好。当地行存为ASCII文件时，务必知道其绘出的地形图是什么形式的，在后面的修改脚本出需要用到。四、脚本修改1.ww3_grid.inp$--------------------------------------------------------------------$$WAVEWATCHIIIGridpreprocessorinputfile$$--------------------------------------------------------------------$$Gridname(C*30,inquotes)$'TESTGRID(GULFOFNOWHERE)'(此处是使用的网格名称)$ $Frequencyincrementfactorandfirstfrequency(Hz)----------------$$numberoffrequencies(wavenumbers)anddirections,relativeoffset$offirstdirectionintermsofthedirectionalincrement[-0.5,0.5].$Inversions1.18and2.22ofthemodelthisvaluewasbydefiniton0,$itisaddedtomitigatetheGSEforafirstorderscheme.Notethat$thisfactorisIGNOREDintheprintplotsinww3_outp.$1.10.0411825240.（频率间隔初始频率波速波向）$$Setmodelflags----------------------------------------------------$$-FLDRYDryrun(input/outputonly,nocalculation).$-FLCX,FLCYActivateXandYcomponentofpropagation.$-FLCTH,FLCKActivatedirectionandwavenumbershifts.$-FLSOUActivatesourceterms.$FTTTFT（上方六项的开关）$$Settimesteps-----------------------------------------------------$$-Timestepinformation(thisinformationisalwaysread)$maximumglobaltimestep,maximumCFLtimestepforx-yand$k-theta,minimumsourcetermtimestep(allinseconds).$900.950.900.300.（第一个数和第三个数一般是第二个数的两倍，第二个数使用程序计算，最后一个一般为30）$$Startofnamelistinputsection------------------------------------$$StartingwithWAVEWATCHIIIversion2.00,thetunableparameters$forsourceterms,propagationschemes,andnumericsarereadusing$namelists.Anynamelistfoundinthefolowingsectionsuptothe$end-of-sectionidentifierstring(seebelow)istemporarilywritten$toww3_grid.scratch,andreadfromthereifnecessary.Namelists$notneededforthegivenswitchsettingswillbeskipped$automatically,andtheorderofthenamelistsisimmaterial.$Asanexample,namelistinputtochangeSWELLFandZWNDinthe$TolmanandChalikovinputwouldbe$$&SIN2SWELLF=0.1,ZWND=15./（此处均属于对源函数的调整，手册有相关介绍）$$Defineconstantsinsourceterms-----------------------------------$$$Stresses------------------------------$TC1996withcap:NamelistFLX3$CDMAX:MaximumallowedCD(cap)$CTYPE:Captype:$0:Discontinuous(default).$1:Hyperbolictangent.$Hwang2011:NamelistFLX4$CDFAC:re-scalingofdrag$$Linearinput----------------------------$CavaleriandM-R:NamelistSLN1$CLIN:Proportionalityconstant.$RFPM:FactorforfPMinfilter.$RFHF:Factorforfhinfilter.$$Exponentialinput-------------------------$WAM-3:NamelistSIN1$CINP:Proportionalityconstant.$$TolmanandChalikov:NamelistSIN2$ZWND:Heightofwind(m).$SWELLF:swellfactorin(n.nn).$STABSH,STABOF,CNEG,CPOS,FNEG:$c0,ST0,c1,c2andf1in.(n.nn)$through(2.65)fordefinitionof$effectivewindspeed(!/STAB2).$WAM4andvariants:NamelistSIN3$ZWND:Heightofwind(m).$ALPHA0:minimumvalueofCharnockcoefficient$Z0MAX:maximumvalueofair-sideroughnessz0$BETAMAX:maximumvalueofwind-wavecoupling$SINTHP:powerofcosineinwindinput$ZALP:waveageshifttoaccountforgustiness$TAUWSHELTER:shelteringofshortwavestoreduceu_star$SWELLFPAR:choiceofswellattenuationformulation$(1:TC1996,3:ACC2008)$SWELLF:swellattenuationfactor$ExtraparametersforSWELLFPAR=3only$SWELLF2,SWELLF3:swellattenuationfactors$SWELLF4:ThresholdReynoldsnumberforACC2008$SWELLF5:Relativeviscousdecaybelowthreshold$Z0RAT:roughnessforoscil.flow/meanflow$BYDRZinput:NamelistSIN6$SINA0:factorfornegativeinput$SINU10:windspeedscalingoption$$Nonlinearinteractions-----------------------$DiscreteI.A.:NamelistSNL1$LAMBDA:Lambdainsourceterm.$NLPROP:Cinsourcterm.NOTE:default$valuedependsonothersource$termsselected.$KDCONV:FactorbeforekdinEq.(n.nn).$KDMIN,SNLCS1,SNLCS2,SNLCS3:$Minimumkd,andconstantsc1-3$indepthscalingfunction.$Exactinteractions:NamelistSNL2$IQTYPE:Typeofdepthtreatment$1:Deepwater$2:Deepwater/WAMscaling$3:Shallowwater$TAILNL:Parametrictailpower.$NDEPTH:Numberofdepthsinforwhich$integrationspaceisestablished.$UsedforIQTYPE=3only$NamelistANL2$DEPTHS:ArraywithdepthsforNDEPTH=3$Gen.MultipleDIA:NamelistSNL3$NQDEF:Numberofquadruplets.$MSC:Scalingconstant'm'.$NSC:Scalingconstant'N'.$KDFD:Deepwaterrelativefilterdepth,$KDFS:Shallowwaterrelativefilterdepth,$NamelistANL3$QPARMS:5xNQDEFparamatersdescribingthe$quadruplets,repeatingLAMBDA,MU,DT12.$CdeepandCshal.Seeexamplesbelow.$$TraditionalDIAsetup(default):$$&SNL3NQDEF=1,MSC=0.00,NSC=-3.50/$&ANL3QPARMS=0.250,0.000,-1.0,0.1000E+08,0.0000E+00/$$GMD3from2010report(G13dinlaterpaper):$$&SNL3NQDEF=3,MSC=0.00,NSC=-3.50/$&ANL3QPARMS=0.126,0.000,-1.0,0.4790E+08,0.0000E+00,$0.237,0.000,-1.0,0.2200E+08,0.0000E+00,$0.319,0.000,-1.0,0.1110E+08,0.0000E+00/$$G35dfrom2010report:$$&SNL3NQDEF=5,MSC=0.00,NSC=-3.50/$&ANL3QPARMS=0.066,0.018,21.4,0.170E+09,0.000E+00,$0.127,0.069,19.6,0.127E+09,0.000E+00,$0.228,0.065,2.0,0.443E+08,0.000E+00,$0.295,0.196,40.5,0.210E+08,0.000E+00,$0.369,0.226,11.5,0.118E+08,0.000E+00/$$NonlinearfilterbasedonDIA-------------------$NamelistSNLS$A34:Relativeoffsetinquadruplet$FHFC:Proportionalityconstants.$DMN:Maximumrelativechange.$FC1-3:Constantsinfrequencyfilter.$$Dissipation----------------------------$WAM-3:NamelistSDS1$CDIS,APM:Asinsourceterm.$$TolmanandChalikov:NamelistSDS2$SDSA0,SDSA1,SDSA2,SDSB0,SDSB1,PHIMIN:$Constantsa0,a1,a2,b0,b1and$PHImin.$$WAM4andvariants:NamelistSDS3$SDSC1:WAM4Cdscoeffient$MNMEANP,WNMEANPTAIL:powerofwavenumber$formeandefinitionsinSdsandtail$SDSDELTA1,SDSDELTA2:relativeweights$ofkandk^2partsofWAM4dissipation$SDSLF,SDSHF:coefficientforactivationof$WAM4dissipationforunsaturated(SDSLF)and$saturated(SDSHF)partsofthespectrum$SDSC2:Saturationdissipationcoefficient$SDSC4:ValueofB0=B/BrforwichSdsiszero$SDSBR:ThresholdBrforsaturation$SDSP:powerof(B/Br-B0)inSds$SDSBR2:ThresholdBr2fortheseparationof$WAM4dissipationinsaturatedandnon-saturated$SDSC5:coefficientforturbulencedissipation$SDSC6:WeightfortheistropicpartofSds_SAT$SDSDTH:Angularhalf-widthforintegrationofB$$BYDRZ:NamelistSDS6$SDSET:Selectthresholdnormalizationspectra$SDSA1,SDSA2,SDSP1,SDSP2:$CoefficientsfordissipationtermsT1andT2$:NamelistSWL6$SWLB1:Coefficientforswelldissipation$$Bottomfriction--------------------------$JONSWAP:NamelistSBT1$GAMMA:Asitsays.$$$Surfbreaking---------------------------$BattjesandJanssen:NamelistSDB1$BJALFA:Dissipationconstant(default=1)$BJGAM:Breakingthreshold(default=0.73)$BJFLAG:TRUE-UseHmax/dratioonly(default)$FALSE-UseHmax/dinMicheformulation$$Triadnonlinearinteractions--------------------$LumpedTriadInteraction(LTA):NamelistSTR1(Tobeimplemented)$PTRIAD1:Proportionalitycoefficient(default0.05)$PTRIAD2:MultipleofTm01uptowhichinteraction$iscomputed(2.5)$PTRIAD3:Ursellupperlimitforcomputing$interactions(notused,default10.)$PTRIAD4:Shapeparameterforbiphase$computation(0.2)$PTRIAD5:Ursellnumbertresholdforcomputing$interactions(0.01)$$Shorelinereflections------------------------$ref.parameters:NamelistREF1$REFCOAST:Reflectioncoefficientatshoreline$REFFREQ:Activationoffreq-dependentref.$REFMAP:Scalefactorforbottomslopemap$REFRMAX:maximumref.coeffient(default0.8)$REFFREQPOW:poweroffrequency$REFICEBERG:Reflectioncoefficientforicebergs$REFSUBGRID:Reflectioncoefficientforislands$REFCOSP_STRAIGHT:powerofcosineusedfor$straightshoreline$$Bound2ndorderspectrumandfreeIG-----------------$IG1parameters:NamelistIG1$IGMETHOD:1:Hasselmann,2:Krasitskii-Janssen$IGADDOUTP:activationofboundwavecorrection$inww3_outp/ww3_ounp$IGSOURCE:1:usesboundwaves,2:empirical$IGSTERMS:>0:nosourceterminIGband$IGMAXFREQ:maximumfrequencyofIGband$IGEMPIRICAL:constantinempiricalfreeIGsource$IGSWELLMAX:activatesfreeIGsourcesforallfreq.$$Propagationschemes------------------------------------------------$$SMCgridpropagation:NamelistPSMC$CFLTM:MaximumCFLnumberforpropagation.$DTIME:Swellage(s)fordiffusionterm.$LATMIN:Maximumlatitude(deg)forGCT.$RFMAXD:Maximumrefractionturning(deg).$&PSMCDTIME=39600.0,LATMIN=85.0,RFMAXD=36.0/$$Propagationschemes------------------------------------------------$$Firstorder:NamelistPRO1$CFLTM:MaximumCFLnumberforrefraction.$$UQ/UNOwithdiffusion:NamelistPRO2$CFLTM:MaximumCFLnumberforrefraction.$DTIME:Swellage(s)ingardensprinkler$correction.If0.,alldiffusion$switchedoff.Ifsmallnon-zero$(DEFAULT!!!)onlywavegrowth$diffusion.$LATMIN:Maximumlatitudeusedincalc.of$strengthofdiffusionforprop.$$UQ/UNOwithaveraging:NamelistPRO3$CFLTM:MaximumCFLnumberforrefraction.$WDTHCG:Tuningfactorpropag.direction.$WDTHTH:Tuningfactornormaldirection.$$NotethatUQandUNOschemeshavenotunableparameters.$Alltuneableparametersareassociatedwiththerefraction$limitationandtheGSEalleviation.$$Unstructuredgrids------------------------------------------------$$UNSTparameters:NamelistUNST$UGOBCAUTO:AutomaticdetectionofOBCpoints$UGOBCDEPTH:Threshold(<0)depthforOBCpoints$EXPFSN:ActivationofNscheme$EXPFSPSI:ActivationofPSIscheme$EXPFSFCT:ActivationofFCTscheme$IMPFSNIMP:ActivationofNimplicitscheme$$SMCgridpropagation:NamelistPSMC$CFLTM:MaximumCFLnumberforpropagation.$DTIME:Swellage(s)fordiffusionterm.$LATMIN:Maximumlatitude(deg)forGCT.$RFMAXD:Maximumrefractionturning(deg).$&PSMCDTIME=39600.0,LATMIN=85.0,RFMAXD=36.0/$$Miscellaneous------------------------------------------------------$$Misc.parameters:NamelistMISC$CICE0:Iceconcentrationcut-off.$CICEN:Iceconcentrationcut-off.$PMOVE:PowerpinGSEaleviationfor$movinggridsinEq.(D.4).$XSEED:Xseedinseedingalg.(!/SEED).$FLAGTR:Indicatingpresenceandtypeof$subgridinformation:$0:Nosubgridinformation.$1:Transparanciesatcellboun-$dariesbetweengridpoints.$2:Transp.atcellcenters.$3:Like1withcont.ice.$4:Like2withcont.ice.$XP,XR,XFILT$Xp,XrandXfforthedynamic$integrationscheme.$IHMAX:Numberofdiscretelevelsinpart.$HSPMIN:MinimumHsinpartitioning.$WSM:Windspeedmultiplierinpart.$WSC:Cutofwindseafractionfor$identifyingwindseainpart.$FLC:Flagforcombiningwindseasin$partitioning.$NOSW:Numberofpartitionedswellfields$infieldoutput.$FMICHE:ConstantinMichelimiter.$P2SF:......$$Inthe'Outofthebox'testsetupwerunwithsub-gridobstacles$andwithcontinuousicetreatment.$&MISCCICE0=0.25,CICEN=0.75,FLAGTR=4/（4改为0）&FLX3CDMAX=3.5E-3,CTYPE=0/$&SDB1BJGAM=1.26,BJFLAG=.FALSE./$$Mandatorystringtoidentifyendofnamelistinputsection.$ENDOFNAMELISTS$$Definegrid--------------------------------------------------------$$$Fiverecordscontaining:$$1Typeofgrid,coordinatesystemandtypeofclosure:GSTRG,FLAGLL,$CSTRG.Gridclosurecanonlybeappliedinsphericalcoordinates.$GSTRG:Stringindicatingtypeofgrid:$'RECT':rectilinear$'CURV':curvilinear$FLAGLL:Flagtoindicatecoordinatesystem:$T:Spherical(lon/latindegrees)$F:Cartesian(meters)$CSTRG:Stringindicatingthetypeofgridindexspaceclosure:$'NONE':Noclosureisapplied$'SMPL':Simplegridclosure:Gridisperiodicinthe$:i-indexandwrapsati=NX+1.Inotherwords,$:(NX+1,J)=>(1,J).Agridwithsimpleclosure$:mayberectilinearorcurvilinear.$'TRPL':Tripolegridclosure:Gridisperiodicinthe$:i-indexandwrapsati=NX+1andhasclosureat$:j=NY+1.Inotherwords,(NX+1,J<=NY)=>(1,J)$:and(I,NY+1)=>(MOD(NX-I+1,NX)+1,NY).Tripole$:gridclosurerequiresthatNXbeeven.Agrid$:withtripoleclosuremustbecurvilinear.$2NX,NY.Astheoutergridlinesarealwaysdefinedasland$points,theminimumsizeis3x3.$$Branchherebasedongridtype$$IF(RECTILINEARGRID)THEN$$3GridincrementsSX,SY(degr.orm)andscaling(division)factor.$IfCSTRG='SMPL',thenSXissetto360/NX.$4Coordinatesof(1,1)(degr.)andscaling(division)factor.$$ELSEIF(CURVILINEARGRID)THEN$$3Unitnumberoffilewithx-coordinate.$Scalefactorandaddoffset:x<=scale_fac*x_read+add_offset.$IDLA,IDFM,formatforformattedread,FROMandfilename.$IDLA:Layoutindicator:$1:Readline-by-linebottomtotop.$2:Like1,singlereadstatement.$3:Readline-by-linetoptobottom.$4:Like3,singlereadstatement.$IDFM:formatindicator:$1:Freeformat.$2:Fixedformatwithaboveformatdescriptor.$3:Unformatted.$FROM:filetypeparameter$'UNIT':openfilebyunitnumberonly.$'NAME':openfilebynameandassigntounit.$$Iftheaboveunitnumberequals10,thenthex-coordisreadfromthis$file.Thex-coordmustfollowtheaboverecord.Nocommentlinesare$allowedwithinthex-coordinput.$$4Unitnumberoffilewithy-coordinate.$Scalefactorandaddoffset:y<=scale_fac*y_read+add_offset.$IDLA,IDFM,formatforformattedread,FROMandfilename.$IDLA:Layoutindicator:$1:Readline-by-linebottomtotop.$2:Like1,singlereadstatement.$3:Readline-by-linetoptobottom.$4:Like3,singlereadstatement.$IDFM:formatindicator:$1:Freeformat.$2:Fixedformatwithaboveformatdescriptor.$3:Unformatted.$FROM:filetypeparameter$'UNIT':openfilebyunitnumberonly.$'NAME':openfilebynameandassigntounit.$$Iftheaboveunitnumberequals10,thenthey-coordisreadfromthis$file.They-coordmustfollowtheaboverecord.Nocommentlinesare$allowedwithinthey-coordinput.$$ELSEIF(UNSTRUCTUREDGRID)THEN$Nothingtodeclare:allthedatawillbereadfromtheGMESHfile$ENDIF(CURVILINEARGRID)$$5Limitingbottomdepth(m)todiscriminatebetweenlandandsea$points,minimumwaterdepth(m)asallowedinmodel,unitnumber$offilewithbottomdepths,scalefactorforbottomdepths(mult.),$IDLA,IDFM,formatforformattedread,FROMandfilename.$IDLA:Layoutindicator:$1:Readline-by-linebottomtotop.$2:Like1,singlereadstatement.$3:Readline-by-linetoptobottom.$4:Like3,singlereadstatement.$IDFM:formatindicator:$1:Freeformat.$2:Fixedformatwithaboveformatdescriptor.$3:Unformatted.$FROM:filetypeparameter$'UNIT':openfilebyunitnumberonly.$'NAME':openfilebynameandassigntounit.$$Iftheaboveunitnumberequals10,thenthebottomdepthsarereadfrom$thisfile.Thedepthsmustfollowtheaboverecord.Nocommentlinesare$allowedwithinthedepthinput.Inthecaseofunstructuredgrids,thefile$isexpectedtobeaGMESHgridfilecontainingnodeandelementlists.$$------------------------------------------------------------------------$Exampleforrectilineargridwithspherical(lon/lat)coordinatesystem.$NotethatforCartesiancoordinatestheunitismeters(NOTkm).$'RECT'T'NONE'（此处关于地形的设置）1212（网格大小：经度格点数纬度格点数）1.1.4.（就是一度的方格里有多少格）-1.-1.4.（起始经度起始纬度步长（一般为1））-0.12.5010（为通道号，最好使用其他数）-10.（地形数值乘以该数等于真实值）3（代表地形文件从上往下读，1代表从下往上读，根据地形文件务必保证数据读取是从北纬到南纬）1'(....)''NAME''bottom.inp'（将‘bottom.inp’改为自己的地形文件名）$（下面加上$）666666666666666542024566666542024566666542024566666542004566666544224566666655445666666666556666666666666666666666666666666666666666666666666666$$------------------------------------------------------------------------$Exampleforcurvilineargridwithspherical(lon/lat)coordinatesystem.$Samespatialgridasprecedingrectilinearexample.$NotethatforCartesiancoordinatestheunitismeters(NOTkm).$$'CURV'T'NONE'$1212$$100.25-0.531'(....)''NAME''x.inp'$$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$123456789101112$$100.250.531'(....)''NAME''y.inp'$$111111111111$222222222222$333333333333$444444444444$555555555555$666666666666$777777777777$888888888888$999999999999$101010101010101010101010$111111111111111111111111$121212121212121212121212$$-0.12.5010-10.31'(....)''NAME''bottom.inp'$$666666666666$666542024566$666542024566$666542024566$666542004566$666544224566$6