#include <bits/stdc++.h>
using namespace std;

int main(){
	int S,T;
	char c;
	 cin >> S >> T >> c;
	 if (S<T && c == '<' || S>T && c == '>' || S==T && c == '=='){
	 	cout << "Yes" << endl;
	 }else{
	   cout << "No" << endl;
	 }
}