#include<bits/stdc++.h>
#define REP1(i,n,m) for(int i=n;i<=m;i++)
#define REP2(i,n,m) for(int i=n;i>=m;i--)
using namespace std;
void YN(bool f){if(f){cout<<"YES"<<endl;}else{cout<<"NO"<<endl;}}
int main(){
	int s,t;
	char c;
	cin>>s>>t>>c;
	if(c=='>'){
		YN(s>t);
	}
	else if(c=='<'){
		YN(s<t);
	}
	else{
		YN(s==t);
	}
	
	
	
}