SUma_nr_mat

#include <iostream>
using namespace std;

int main()
{

int a[100][100];
unsigned long s=0,nr,n,m,i,j;
cout<<"n=";cin>>n;
cout<<"m=";cin>>m;

for (i=0;i<n;i++)
for (j=0;j<m;j++)
cin>>a[i][j];

for (i=0;i<n;i++) {
        nr=0;
    for (j=0;j<m;j++)
    nr=nr*10+a[i][j];
    s+=nr;
}
cout<<s;
    return 0;//
}