#include <fstream>

using namespace std;

ifstream f("royfloyd.in");
ofstream g("royfloyd.out");

const int N = 105;
const int oo = (1 << 29);

int cost[N][N];
int n, k, i, j;

int main() {
    f >> n;
    for(i = 1; i <= n; i++)
        for(j = 1; j <= n; j++)
        {
            f >> cost[i][j];
            if(!cost[i][j]) cost[i][j] = oo;
        }

    for(k = 1; k <= n; k++)
        for(i = 1; i <= n; i++)
            for(j = 1; j <= n; j++)
                if(i != j && i != k && j != k)
                        cost[i][j] = min(cost[i][j], cost[i][k] + cost[k][j]);

    for(i = 1; i <= n; i++, g << '\n')
        for(j = 1; j <= n; j++) {
            if(cost[i][j] == oo) cost[i][j] = 0;
            g << cost[i][j] << '\n';
        }

    return 0;
}