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#include <iostream>
#include <fstream>
#define NRMAX 1050
#define INF 9999999
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int n;
int c[NRMAX][NRMAX];
void citire();
void pd();
void afisare();
int main()
{
citire();
pd();
afisare();
return 0;
}
void citire()
{
int i,j;
fin>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{fin>>c[i][j];
if(c[i][j]==0 && i!=j)
c[i][j]=INF;
}
}
void pd()
{
int i,j,k;
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(k!=i && k!=j)
c[i][j]=min(c[i][j],c[i][k]+c[k][j]);
}
void afisare()
{
int i,j;
for(i=1;i<=n;i++)
{for(j=1;j<=n;j++)
if(c[i][j]==INF)
fout<<0<<' ';
else
fout<<c[i][j]<<' ';
fout<<'\n';
}
}