#include<stdlib.h>
#include<stdio.h>

int a[10][10];
void royfloyd()
{
     int i,j,k,n;
     for (k=1;k<=n;k++)
         for (i=1;i<=n;i++)
             for (j=1;j<=n;j++)
             if (a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j] && i!=j))
             a[i][j] = a[i][k] + a[k][j];
}
int main()
{int n,i,j;
    freopen("royfloyd.in","r",stdin);
    freopen("royfloyd.out","w",stdout);
    scanf("%d ",&n);
    for (i=1;i<=n;i++)
        for (j=1;j<=n;j++)
    scanf("%d",&a[i][j]);
    
    royfloyd();
    
    for (i=1;i<=n;i++)
        {
        for (j=1;j<=n;j++)
        printf("%d",a[i][j]);
        }
system("pause");
return 0;
}