#include <iostream>
#include <fstream>

using namespace std;

int a[100][100],n,i,j;

int main()
{ifstream f ("royfloid.in");
ofstream g ("royfloid.out");
f>> n;
for (i=1;i<=n;i++){
    for (j=1;j<=n;j++)
    f>>a[i][j];
}
int k;
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] && i!=j)
            {
                        if (a[i][j]==0) a[i][j]=a[i][k]+a[k][j];
                           else a[i][j]=min(a[i][j],a[i][k]+a[k][j]);
                           }
    for (i=1;i<=n;i++){
        for (j=1;j<=n;j++)
            g<<a[i][j];
                 g<<endl;
}
    return 0;
}