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#include<bits/stdc++.h>
using namespace std;
int n,a[105][105];
void cetire()
{
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int i,j;
for(i =1;i<=n;i++)
for(j=1;j<=n;j++)
cin>>a[i][j];
}
void royfloyd()
{
int i,k,j;
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];
}
void afisare()
{
int i,j;
for(i =1;i<=n;i++)
for(j=1;j<=n;j++)
cout<<a[i][j];
}
int main()
{
cetire();
afisare();
}