#include <iostream>
using namespace std;
int main()
{
int a[10][10],m,n,i,j,x=0;
cin>>m>>n;
for (i=1;i<=m;i++)
for (j=1;j<=n;j++)
cin>>a[i][j];
for (i=1;i<=m;i++)
for (j=1;j<=n;j++)
if (a[i][j]==13) x++;
cout<<x;
return 0;
}
Sper că te-am ajutat :)