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

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

int inf = 10000000;
int n;
int dist[1005][1005];

int main() {
	f >> n;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			f >> dist[i][j];
			if (dist[i][j] == 0) dist[i][j] = inf;
		}
	}
	for (int k = 1; k <= n; k++) {
		for (int i = 1; i <= n; i++) {
			for (int j = 1; j <= n; j++) {
				if (i != j)
					dist[i][j] = min(dist[i][j], dist[k][j] + dist[i][k]);
			}
		}
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			if (dist[i][j] == inf)
				g << 0 << ' ';
			else
				g << dist[i][j] << ' ';
		}
		g << '\n';
	}
	return 0;
}