#include <iostream>
 #include <iomanip>
  #include <fstream>
   using namespace std;
     ifstream fin("soarece.in");
ofstream fout("soarece.out");
    int n,m,is,js,ib,jb,a[11][11], nrsol = 0;
    const int di[]={0,0,1,-1}, dj[]={1,-1,0,0};
      void afis(){
           nrsol++;
            //for(int i=1;i<=n;++i){
             // for(int j=1;j<=m;++j)
                 // cout << setw(3) << a[i][j];
                 // cout << endl; //} //cout << endl;
                  }
void back(int i,int j, int pas){
     if(i>0 && i<=n && j>0 && j<=m && a[i][j]==0){
        a[i][j] = pas;
     if(i==ib && j==jb)
    afis();
        else for(int k=0;k<4;++k)
        back(i+di[k], j+dj[k], pas+1);
         a[i][j] = 0; }
     }
int main() {
     fin >> n >> m;
      for(int i=1;i<=n;++i)
        for(int j=1;j<=m;++j)
         fin >> a[i][j], a[i][j] = -a[i][j];
      fin >> is >> js >> ib >> jb;
       back(is, js, 1);
       fout << nrsol;
        return 0;
}