#include <bits/stdc++.h>
using namespace std;
long long x,y;
int main()
{
cin>>x>>y;
if (x>y) cout<<"x la so lon";
else cout<<"x khong la so lon";
return 0;
}
Var x,y:real;
Begin
Write('Nhap so a = ');readln(a);
Write('Nhap so b = ');readln(b);
If a > b then write(a,' la so lon')
Else write(a,' khong la so lon');
Readln;
End.