#include <iostream>
#include <fstream>

using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[1000][1000],n,i,k,j;;

int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
            {f>>a[i][j];
            }
        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];
        for(i=1;i<=n;i++){
        for(j=1;j<=n;j++)
            g<<a[i][j]<<" ";
        g<<'\n';}

}