#include <fstream>
#include <vector>

using namespace std;

int main() {
    ifstream in("royfloyd.in");
    ofstream out("royfloyd.out");

    int n;
    in >> n;

    vector< vector<int> > graph (n, vector<int> (n));

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            in >> graph[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 && graph[i][k] && graph[k][j] && (graph[i][j] > graph[i][k] + graph[k][j] || ! graph[i][j])) {
                    graph [i][j] = graph[i][k] + graph[k][j];
                }
            }
        }
    }

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            out << graph[i][j] << " ";
        }
        out << '\n';
    }

    return 0;

}