#include <fstream>
#include <vector>

int main()
{
    std::ifstream in("royfloyd.in");
    int n; in >> n;
    std::vector d(n, std::vector(n, 0));
    for(int i = 0; i < n; i++)
        for(int j = 0; j < n; j++)
            in >> d[i][j];
    in.close();

    for(int k = 0; k < n; k++)
        for(int i = 0; i < n; i++)
            for(int j = 0; j < n; j++)
                if(d[i][k] != 0 && d[k][j] != 0 && (d[i][j] == 0 || d[i][j] > d[i][k] + d[k][j]) && i != j)
                    d[i][j] = d[i][k] + d[k][j];

    std::ofstream out("royfloyd.out");
    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
            out << d[i][j] << " ";
        out << "\n";
    }
    out.close();
    return 0;
}