/*
https://infoarena.ro/problema/royfloyd
*/
#include <fstream>
#include <vector>

using namespace std;

const int INF = 1e6;

int main()
{
    ifstream in("royfloyd.in");
    ofstream out("royfloyd.out");
    int n;
    in >> n;
    vector <vector <int>> d(n + 1, vector <int>(n + 1, INF));
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            int cost;
            in >> cost;
            if (i == j || cost != 0)
            {
                d[i][j] = cost;
            }
        }
    }
    in.close();
    for (int k = 1; k <= n; k++)
    {
        for (int i = 1; i <= n; i++)
        {
            for (int j = 1; j <= n; j++)
            {
                if (d[i][k] + d[k][j] < d[i][j])
                {
                    d[i][j] = d[i][k] + d[k][j];
                }
            }
        }
    }
    for (int i =1; i <= n; i++)
    {
        for (int j =1; j <= n; j++)
        {
            out << d[i][j] << " ";
        }
        out << "\n";
    }
    out.close();
    return 0;
}