#include<fstream.h>
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int n, a[105][105];
void citire()
{int i, j;
f>>n;
	for (i = 1; i <= n; i++)
		for (j = 1; j <= n; j++) f>>a[i][j];
}

void roy_floyd()
{int i, j, k;
	for (k = 1; k <= n; k++)
		for (i = 1; i <= n; i++)
			for (j = 1; j <= n; j++)
				if (a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j]) && i != j) a[i][j] = a[i][k] + a[k][j];
}
void afis()
{int i, j;
	for (i = 1; i <= n; i++) 
	{for (j = 1; j <= n; j++) g<<a[i][j];
		g<<"\n";
	}
}
int main()
{citire();
 roy_floyd();
 afis();
 return 0;
}