#include<stdio.h>#include<ctype.h>#include<string.h>bool bSafe[8][8],bOccupy[8][8];const int HORSE[8][2]={2,1,1,2,-1,2,-2,1,-2,-1,-1,-2,1,-2,2,-1},KING[8][2]={1,0,1,1,0,1,-1,1,-1,0,-1,-1,0,-1,1,-1},DIAGONAL[4][2]={{-1,-1},{-1,1},{1,-1},{1,1}},BEELINE[4][2]={1,0,-1,0,0,-1,0,1};bool Avail(int iRow,int iCol){return iRow>=0 && iRow<8 && iCol>=0 && iCol<8;}void FillDiagonal(int iRow,int iCol){int i,j;for(j=0;j<4;j++)for(i=1;Avail(iRow+i*DIAGONAL[j][0],iCol+i*DIAGONAL[j][1]);i++){if(bOccupy[iRow+i*DIAGONAL[j][0]][iCol+i*DIAGONAL[j][1]])break;bSafe[iRow+i*DIAGONAL[j][0]][iCol+i*DIAGONAL[j][1]]=false;}}void FillBeeline(int iRow,int iCol){int i,j;for(j=0;j<4;j++)for(i=1;Avail(iRow+i*BEELINE[j][0],iCol+i*BEELINE[j][1]);i++){if(bOccupy[iRow+i*BEELINE[j][0]][iCol+i*BEELINE[j][1]])break;bSafe[iRow+i*BEELINE[j][0]][iCol+i*BEELINE[j][1]]=false;}}int main(){char cLine[100],cDes[8][10],cBoard[8][10];int iPos,i,j,k,iCount,iHead,iEnd;while(gets(cLine)){iHead=iEnd=0;for(i=0;i<8;i++){for(iEnd=iHead+1;cLine[iEnd]!='/' && cLine[iEnd]!=' ';iEnd++);cLine[iEnd]=' ';strcpy(cDes[i],cLine+iHead);iHead=iEnd+1;}memset(bSafe,true,sizeof(bSafe));memset(bOccupy,false,sizeof(bOccupy));memset(cBoard,'.',sizeof(cBoard));for(i=0;i<8;i++){iPos=0;for(j=0;cDes[i][j]!=' ';j++){if(isdigit(cDes[i][j]))iPos+=cDes[i][j]-'0';else{cBoard[i][iPos]=cDes[i][j];bOccupy[i][iPos++]=true;}}cBoard[i][8]=' ';}for(i=0;i<8;i++)for(j=0;j<8;j++){if(cBoard[i][j]=='p'){if(Avail(i+1,j-1))bSafe[i+1][j-1]=false;if(Avail(i+1,j+1))bSafe[i+1][j+1]=false;}else if(cBoard[i][j]=='P'){if(Avail(i-1,j-1))bSafe[i-1][j-1]=false;if(Avail(i-1,j+1))bSafe[i-1][j+1]=false;}else if(tolower(cBoard[i][j])=='n')for(k=0;k<8;k++){if(Avail(i+HORSE[k][0],j+HORSE[k][1]))bSafe[i+HORSE[k][0]][j+HORSE[k][1]]=false;}else if(tolower(cBoard[i][j])=='b')FillDiagonal(i,j);else if(tolower(cBoard[i][j])=='r')FillBeeline(i,j);else if(tolower(cBoard[i][j])=='q'){FillDiagonal(i,j);FillBeeline(i,j);}else if(tolower(cBoard[i][j])=='k')for(k=0;k<8;k++){if(Avail(i+KING[k][0],j+KING[k][1]))bSafe[i+KING[k][0]][j+KING[k][1]]=false;}}iCount=0;for(i=0;i<8;i++)for(j=0;j<8;j++)if(bSafe[i][j] && !bOccupy[i][j])iCount++;printf("%dn",iCount);}}
