#include <bits/stdc++.h>
using namespace std;
using ll = long long int;
using iPair = pair<int,int>;
using lPair = pair<ll, ll>;
using ivector = vector<int>;
using lvector = vector<ll>;
using istack = stack<int>;
using iqueue = queue<int>;
using ivv = vector<vector<int>>;
using lvv = vector<vector<ll>>;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
vector<iPair> dir = {{1,0}, {-1,0}, {0,1}, {0,-1}};
#define dump(x) cout << #x << " = " << (x) << endl
#define ALL(x) begin(x),end(x)
#define rep(i,s,e) for(ll i=(s), i_stop=(e); i<i_stop; ++i)
#define repRev(i,s,e) for(ll i=(e)-1, i_stop=(s); i>=i_stop; --i)
#define range(i,s,n) for(ll i=(s), i_stop=(s)+(n); i<i_stop; ++i)
#define rangeRev(i,s,n) for(ll i=(s), i_stop=(s)-(n); i>i_stop; --i)
#define foreach(x,container) for(auto &&x:container)
template<typename T> bool chmax(T& a, const T b) {if(a<b) {a=b;return true;} return false;}
template<typename T> bool chmin(T& a, const T b) {if(a>b) {a=b;return true;} return false;}
template<typename T> void printArr(vector<T> &arr){
    for(auto &x:arr) {cout << x << " ";} cout << endl;
}

/*
*/



void solve() {
    int s,t; string c;
    cin>>s>>t>>c;

    bool flag;
    if(c[0]=='=') flag = s==t;
    else if(c[0] == '>')  flag = s>t;
    else flag = s<t;

    cout << (flag?"YES":"NO") << endl; 
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    solve();
    return 0;
}