Hourglass Sum

//Hourglass Sum

#include<bits/stdc++.h>

using namespace std;

int main(){
    int a[7][7];
    int i,j,t[16],high=-1000000000,total=0;
    for(i=0;i<6;i++){
        for(j=0;j<6;j++){
            cin>>a[i][j];
        }
    }
   for(i=0;i<=3;i++){
        for(j=0;j<=3;j++){
          total=a[i][j]+a[i][j+1]+a[i][j+2]+a[i+1][j+1]+a[i+2][j]+a[i+2][j+1]+a[i+2][j+2];
          if(high<total) high=total;
        }
   }
   cout<<high;
    return 0;
}