#include<fstream>
using namespace std;
int main ()
{
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int i,n,j,k;
f>>n;
int a[n+1][n+1];
for(i=1;i<=n;i++)
	for(j=1;j<=n;j++)
	f>>a[i][j];
for(k=1;k<=n;k++)
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
			if(i!=j and a[i][k]*a[k][j]!=0 and (a[i][j]>a[i][k]+a[k][j] or a[i][j]==0))a[i][j]=a[i][k]+a[k][j];
for(i=1;i<=n;i++,g<<"\n")
	for(j=1;j<=n;j++)
		g<<a[i][j]<<" ";
f.close();
g.close();
return 0;
}