#include <fstream>
#include <iostream>
using namespace std;

int main()
{
    ifstream fin("royfloyd.in");
    ofstream fout("royfloyd.out");

    uint16_t n, d[1010][1010];

    fin >> n;
    for (uint16_t i = 0; i < n; ++i)
        for (uint16_t j = 0; j < n; ++j)
            fin >> d[i][j];

    for (uint16_t k = 0; k < n; ++k)
        for (uint16_t u = 0; u < n; ++u)
            for (uint16_t v = 0; v < n; ++v)
                if (u != v && d[u][k] != 0 && d[k][v] != 0 &&
                        (d[u][v] == 0 || d[u][v] > d[u][k] + d[k][v]))
                    d[u][v] = d[u][k] + d[k][v];

    for (uint16_t u = 0; u < n; ++u) {
        for (uint16_t v = 0; v < n; ++v)
            fout << d[u][v] << ' ';
        fout << '\n';
    }

    return 0;
}