#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int A,B;
  char s;
  cin>>A>>B>>s;
  if(s == '=') cout<<((A == B) ? "YES" : "NO")<<endl;
  if(s == '<') cout<<((A < B) ? "YES" : "NO")<<endl;
  if(s == '>') cout<<((A > B) ? "YES" : "NO")<<endl;
}