#include <fstream>
#include <vector>

using namespace std;

ifstream cin("royfloyd.in");
ofstream cout("royfloyd.out");

int a[101][101];
int n;

int main() {
    cin >> n;
    for (int i = 1; i <= n; ++i)
        for (int j = 1; j <= n; ++j)
            cin >> a[i][j];
	for (int k = 1; k <= n; k++)
		for (int i = 1; i <= n; i++)
			for (int j = 1; j <= n; j++)
				if (a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j]) && i != j)
                    a[i][j] = a[i][k] + a[k][j];
    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= n; ++j)
            cout << a[i][j];
        cout << '\n';
    }
    return 0;
}