#include<fstream>
using namespace std;
int main ()
{
ifstream f("fisier_de_intrare.txt");
ofstream g("fisier_de_iesire.txt");
int i,n,j,k,max=-2000;
f>>n;
int a[n+1][n+1];
for(i=1;i<=n;i++)
	for(j=1;j<=n;j++)
	{
	f>>a[i][j];
	if(a[i][j]>max)max=a[i][j];
	}
max+=1000;
for(k=1;k<=n;k++)
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
		{
		if(a[i][j]==0)a[i][j]=max;
		if(a[i][j]!=max and a[i][j]>a[i][k]+a[k][j])a[i][j]=a[i][k]+a[k][j];
		}
for(i=1;i<=n;i++,g<<"\n")
	for(j=1;j<=n;j++)
	if(a[i][j]==max)g<<"0 ";
		else g<<a[i][j]<<" ";
f.close();
g.close();
return 0;
}