#include <iostream>
#include <fstream>
using namespace std;

#define MAX_LINES 100
#define MAX_COLS 100

void read_matrix(ifstream& fin, int matrix[MAX_LINES][MAX_COLS], int size)
{
    for (int i = 0; i < size; i++)
        for (int j = 0; j < size; j++)
            fin >> matrix[i][j];
}

void write_matrix(ofstream& fout, int matrix[MAX_LINES][MAX_COLS], int size)
{
    for (int i = 0; i < size; i++)
    {
        for (int j = 0; j < size; j++)
            fout << matrix[i][j] << " ";
        fout << endl;
    }
}

void floyd_warshal(int matrix[MAX_LINES][MAX_COLS], int size)
{
    for (int k = 0; k < size; k++)
        for (int i = 0; i < size; i++)
            for (int j = 0; j < size; j++)
            {
                if (i == j) continue;
                if ((matrix[i][k] != 0 && matrix[k][j] != 0)
                    && ((matrix[i][j] > matrix[i][k] + matrix[k][j])
                        || matrix[i][j] == 0))
                {
                    matrix[i][j] = matrix[i][k] + matrix[k][j];
                }
            }
}

int main()
{
    int matrix[MAX_LINES][MAX_COLS];
    ifstream fin("royfloyd.in");
    ofstream fout("royfloyd.out");

    int size;
    fin >> size;

    read_matrix(fin, matrix, size);
    floyd_warshal(matrix, size);
    write_matrix(fout, matrix, size);


    fin.close();
    fout.close();

    return 0;
}