#include <fstream>

using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int dp[103][103];
int main(){
    int n;
    fin >> n;
    for(int i = 1 ; i <= n ; ++ i)
        for(int j = 1 ; j <= n ; ++ j)
            dp[i][j] = INT_MAX;
    for(int i = 1 ; i <= n ; ++ i)
        for(int j = 1 ; j <= n ; ++ j)
            fin >> dp[i][j];
    for(int k = 1 ; k <= n ; ++ k)
        for(int i = 1 ; i <= n ; ++ i)
            for(int j = 1 ; j <= n ; ++ j)
                if(dp[i][k] != -1 && dp[j][k] != -1 && dp[i][j] > dp[i][k] + dp[k][j])
                    dp[i][j] = dp[i][k] + dp[k][j];
    for(int i = 1 ; i <= n ; ++ i){
        for(int j = 1 ; j <= n ; ++ j)
            fout << dp[i][j] << ' ';
        fout << '\n';
    }
    return 0;
}