#include <fstream>
#include <vector>
 
using namespace std;
 
int main() {
 
    ifstream in("royfloyd.in");
    ofstream out("royfloyd.out");
 
    int n; in >> n;
 
    int mat[100][100];
 
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            in >> mat[i][j];
        }
    }
 
    for (int k = 0; k < n; ++k) {
        for (int i = 0; i < n; ++i) {
            for (int j = 0; j < n; ++j) {
                if (mat[i][k] * mat[k][j]) {
                    if (mat[i][k] > 0 && mat[k][j] > 0) {
                        if (i != j) {
                            if (mat[i][j] == 0 || mat[i][j] > mat[i][k] + mat[k][j]) {
                                mat[i][j] = mat[i][k] + mat[k][j];
                            }
                        }
                    }
                }
            }
        }
    }
 
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            out << mat[i][j] << " ";
        }
        out << "\n";
    }
 
    return 0;
}