#include <bits/stdc++.h>

using namespace std;
#define inf 1005

ifstream fin("royfloyd.in"); ofstream fout("royfloyd.out");
int main(){
    int n;
    fin >> n;
    vector<vector<int>> grid(n+1, vector<int>(n+1, inf));
    for(int i = 1; i<=n; i++){
        for(int j = 1; j<=n; j++){
            fin >> grid[i][j];
        }
    }
    for(int k = 1; k<=n; k++){
        for(int i = 1; i<=n; i++){
            for(int j = 1; j<=n; j++){
                if(grid[i][k] && grid[k][j] && (grid[i][j] > grid[i][k] + grid[k][j] || !grid[i][j]) && i!=j) grid[i][j]=grid[i][k] + grid[k][j];
            }
        }
    }
    for(int i = 1; i<=n; i++){
        for(int j = 1; j<=n; j++){
            fout << grid[i][j] << " ";
        }
        fout << endl;
    }
}