输入：
```plain
oVWQdDOCVvYDkddLvOvKjXMuMkgXUXjmNuefqh{hOUCIqRnCDhzSMqZxNGGJTtCeqKwdBTQmFqFGXCsc
qwOSqnZhPOVQRqWpdViEWDoxgWcRd[XJzqQfjFqZMwgfsFUOr{wrLbXwTUDFeJXr[Tu{dEZHqP[nEBRN
imnEmpHCVPlXWnPDEX[hIVQkNFyKZFwKvQGfS{wtHfZXmlJhZytqBSzfgjybhRFsUiRWNoXrBHfhT[Ub
hZFPieTHsRUhuJybRBVoRhkc[YpfkxWlxJBUM[nxTexrvOKekyHBqodODD[GGMRVBki[m[XJgze{yY[P
[pgNtDJeBjnxDxkdKTyGhMF{pinIdypWSOUfCqFLWuvYFKvsuczNxgRvHuOZmmouJucHj[DlhLwnSocm
crMCltuwhvqjEnDpeIeKjbFdCNEzsNkZhepYP[uD[mlkVwXt[NiLjoNxgPTSVSivgWtjRdNQjjePpQrE
RjGKobNUvWdXqnWbqWbSSpizKcDDKyGTIruwbqSmioKDG{YiGMhlSroLOFpRHhIjMMCBWdsdlDPUK[nF
DsMyjPOG{XClqcsBWzKOxsVIejVqCMyOebKeRqRFc[GgHbDxCtMrrnEdfbsRXCGgWrvjOTOWXBCMIynt
cQRgUvUYMePMdJnXljKfNkpWGNPRHGbgOMD[qwQERqoXgoEQipSzXmLiGHeofoubFLcEELFqPD[bRoTM
MToRb[DPqFLEEcLFbuofoeHGiLmXzSpiQEogXoqREQwq[DMOgbGHRPNGWpkNfKjlXnJdMPeMYUvUgRQc
tnyIMCBXWOTOjvrWgGCXRsbfdEnrrMtCxDbHgG[cFRqReKbeOyMCqVjeIVsxOKzWBscqlCX{GOPjyMsD
Fn[KUPDldsdWBCMMjIhHRpFOLorSlhMGiY{GDKoimSqbwurITGyKDDcKzipSSbWqbWnqXdWvUNboKGjR
ErQpPejjQNdRjtWgviSVSTPgxNojLiN[tXwVklm[Du[PYpehZkNszENCdFbjKeIepDnEjqvhwutlCMrc
mcoSnwLhlD[jHcuJuommZOuHvRgxNzcusvKFYvuWLFqCfUOSWpydInip{FMhGyTKdkxDxnjBeJDtNgp[
OLebjbJLTfpDgTRylEkXJUngwpTKcQXywvExPfuHU{mkKgnndozu[PIjrnRpWgWR{FOLViUdYMmoUQmo
LJQmSmJveThW{qrxvzzVdbVRcnpIT{BKbGSPGGLyeUtiyUdtMcYygDYbLvvOirlOI{Gi{BkZVWujRmJY
PUtGlQGogRTcyknwDVRpgwrMtxCUkGkxRjSI{INnxQhZmNgHBDmpOBQfXlctnIOPEGC[QpOsnMmBjRxj
```
输出：
```plain
776
pgNtDJeBjnxDxkdKTyGhMF{pinIdypWSOUfCqFLWuvYFKvsuczNxgRvHuOZmmouJucHj[DlhLwnSocm
crMCltuwhvqjEnDpeIeKjbFdCNEzsNkZhepYP[uD[mlkVwXt[NiLjoNxgPTSVSivgWtjRdNQjjePpQrE
RjGKobNUvWdXqnWbqWbSSpizKcDDKyGTIruwbqSmioKDG{YiGMhlSroLOFpRHhIjMMCBWdsdlDPUK[nF
DsMyjPOG{XClqcsBWzKOxsVIejVqCMyOebKeRqRFc[GgHbDxCtMrrnEdfbsRXCGgWrvjOTOWXBCMIynt
cQRgUvUYMePMdJnXljKfNkpWGNPRHGbgOMD[qwQERqoXgoEQipSzXmLiGHeofoubFLcEELFqPD[bRoTM
MToRb[DPqFLEEcLFbuofoeHGiLmXzSpiQEogXoqREQwq[DMOgbGHRPNGWpkNfKjlXnJdMPeMYUvUgRQc
tnyIMCBXWOTOjvrWgGCXRsbfdEnrrMtCxDbHgG[cFRqReKbeOyMCqVjeIVsxOKzWBscqlCX{GOPjyMsD
Fn[KUPDldsdWBCMMjIhHRpFOLorSlhMGiY{GDKoimSqbwurITGyKDDcKzipSSbWqbWnqXdWvUNboKGjR
ErQpPejjQNdRjtWgviSVSTPgxNojLiN[tXwVklm[Du[PYpehZkNszENCdFbjKeIepDnEjqvhwutlCMrc
mcoSnwLhlD[jHcuJuommZOuHvRgxNzcusvKFYvuWLFqCfUOSWpydInip{FMhGyTKdkxDxnjBeJDtNgp
```
by linxuanrui @ 2023-09-29 10:40:38