#include<iostream>
#include<fstream>
using namespace std;
fstream f("royfloyd.in",ios::in);
fstream g("royfloyd.out",ios::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];
                                                                         cout<<"X";}
}

void afis()
{
int i, j;
  for (i = 1; i <= n; i++)
   {
    for (j = 1; j <= n; j++) g<<a[i][j]<<" ";
     g<<endl;

   }
}
int main()
{
citire();

roy_floyd();

afis();
f.close();
g.close();
return 0;
}