#include <bits/stdc++.h>

using namespace std;

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

int main() {
    int n;
    in >> n;

    std::vector<std::vector<int>> a(n, std::vector<int>(n, 0));
    std::vector<std::vector<int>> dp(n, std::vector<int>(n, 0));
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++) {
            in >> a[i][j];
            if (a[i][j] == 0) {
                dp[i][j] = 1e9;
            } else {
                dp[i][j] = a[i][j];
            }
        }
    
    for (int k = 0; k < n; k++)
        for (int i = 0; i < n; i++)
            for (int j = 0; j < n; j++) {
                if (i != j)
                    dp[i][j] = min(dp[i][j], dp[i][k] + dp[k][j]);
            }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (dp[i][j] == 1e9) {
                out << 0 << ' ';
            } else {
                out << dp[i][j] << ' ';
            }
        }
        out << '\n';
    }
}