#include <fstream>

#define NMAX 105

using namespace std;

ifstream f("royfloyd.in");
ofstream g("royfloyd.out");

int n;
int a[NMAX][NMAX];

int main()
{
    f >> n;
    for (int i = 1; i <= n; i++) {

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

    for (int mid = 1; mid <= n; mid++) {

        for (int i = 1; i <= n; i++) {

            for (int j = 1; j <= n; j++) {

                if (a[i][mid] && a[mid][j]  && i != j) {

                    if (a[i][j] == 0)
                        a[i][j] = a[i][mid] + a[mid][j];
                    else
                        a[i][j] = min(a[i][j], a[i][mid] + a[mid][j]);
                }
            }
        }
    }

    for (int i = 1; i <= n; i++) {

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

    return 0;
}