#include <bits/stdc++.h>

using namespace std;
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");

int n;
int main() {
    in >> n;
    vector<vector<int>> dp(n, vector<int>(n, 0));

    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++) {
            if (i != j && dp[i][j] == 1e9) {
                dp[i][j] = 1e9;
            }
            in >> dp[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) {
                dp[i][j] = 0;
            }
            out << dp[i][j] << ' ';
        }

        out << '\n';
    }
    return 0;
}