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#include <fstream>
#define DIM 101
using namespace std;
int n,m,a[DIM][DIM];
void royfloyd()
{
for(int k=1;k<=n;++k)
{
for(int i=1;i<=n;++i)
{
for(int j=1;j<=n;++j)
{
if(!a[i][k] && !a[k][i] && !a[i][j] && (a[i][k]+a[k][j]<a[i][j] || (!a[i][j] && i!=j)))
a[i][j]=a[i][k]+a[k][j];
}
}
}
}
int main()
{
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
f>>n;
for(int i=1;i<=n;++i)
{
for(int j=1;j<=n;++j)
f>>a[i][j];
}
royfloyd();
for(int i=1;i<=n;++i)
{
for(int j=1;j<=n;++j)
g<<a[i][j]<<" " ;
g<<'\n';
}
f.close();
g.close();
return 0;
}