#include <fstream>

using namespace std;

int main()
{
    int N, i, j;

    ifstream f("royfloyd.in");
    f >> N;
    int a[N + 1][N + 1];

    for (i = 1; i <= N; i++)
        for (j = 1; j <= N; j++)
            f >> a[i][j];
    f.close();

    int k;
    for (k = 1; k <= N; k++)
        for (i = 1; i <= N; i++)
            for (j = 1; j <= N; j++)
                if (a[i][k] && a[j][k])
                    if ((a[i][k] + a[k][j] < a[i][j] && i != j) || !a[i][j])
                        a[i][j] = a[i][k] + a[k][j];

    ofstream g("royfloyd.out");
    for (i = 1; i <= N; i++)
    {
        for (j = 1; j <= N; j++)
            g << a[i][j] << " ";
        g << '\n';
    }
    g.close();

    return 0;
}