#include <iostream>
#include <fstream>
#include <climits>
using namespace std;
ifstream f("royfloyd.in");
ofstream o("royfloyd.out");
int main()
{

    int v;
    f >> v;
    int a[v+1][v+1];


    for (int i = 1; i <= v; i++)
        for (int j = 1; j <= v; j++)
            f >> a[i][j];

    for (int i = 1; i <= v; i++)
        for (int j = 1; j <= v; j++)
        {
            if(i!=j && a[i][j]==0) a[i][j]=1000*v;
        }

    for (int k = 1; k <= v; k++)
        for (int i = 1; i <= v; i++)
            for (int j = 1; j <= v; j++)
             a[i][j] = min(a[i][j], a[i][k] + a[k][j]);

    for (int i = 1; i <= v; i++)
    {
        for (int j = 1; j <= v; j++)
            o << a[i][j] << " ";
        o << "\n";
    }
}