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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[1001][1001],n;
void citire()
{
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f>>a[i][j];
}
void Roy()
{
int i,j,k;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
for(k=1;k<=n;k++)
{
if(a[i][j]>a[i][k]+a[k][j] and k!=j and a[j][i] and a[i][k])
a[i][j]=a[i][k]+a[k][j];
}
}
void afisare()
{
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<'\n';
}
}
int main()
{
citire();
Roy();
afisare();
return 0;
}