#include <fstream>
#include <iostream>
using namespace std;
int main()
{
    fstream f("royfloyd.in",ios::in);
    int n;
    f>>n;
    int a[n][n],i,j,k;
    for (i=1; i<=n; i++)
        for (j=1; j<=n; j++) f>>a[i][j];
    f.close();
    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] || (i != j && !a[i][j])))
                     a[i][j] = a[i][k] + a[k][j];
    fstream f2("royfloyd.out",ios::out);
        for (i=1; i<=n; i++)
        {
            for (j=1; j<=n; j++) f2<<a[i][j]<<" ";
            f2<<endl;
        }
    f2.close();
}