#include <fstream>

using namespace std;

ifstream f("royfloyd.in");
ofstream g("royfloyd.out");

int N,a[100][100];

void royfloyd(){
for (int k=1;k<=N;k++)
    for (int i=1;i<=N;i++)
        for (int 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()
{
    f>>N;
    for (int i=1;i<=N;i++)
        for (int j=1;j<=N;j++) f>>a[i][j];
    royfloyd();
    for (int i=1;i<=N;i++){
        for (int j=1;j<=N;j++) g<<a[i][j]<<" ";
        g<<'\n';}
    return 0;
}