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

int n, a[1000][1000];

void roy_floyd()
{
	for (int k = 1; k <= n; k++)
		for (int i = 1; i <= n; i++)
			for (int j = 1; j <= n; j++)
				if (a[k][j] != 0 && a[i][k] != 0 && i!=j)
					if (a[i][j] == 0 || a[i][j] > a[k][j] + a[i][k])
						a[i][j] = a[k][j] + a[i][k];
}

int main()
{
	ifstream g("royfloyd.in");
	g >> n;
	for (int i = 1; i <= n; i++)
		for (int j = 1; j <= n; j++)
			g >> a[i][j];
	g.close();
	roy_floyd();
	ofstream h("royfloyd.out");
	for (int i = 1; i <= n; i++)
	{
		for (int j = 1; j <= n; j++)
			h << a[i][j] << ' ';
		h << endl;
	}
	h.close();
}