#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

#define YES(i) if(i) cout << "YES" << endl; else cout << "NO" << endl

int main(){
    int N, M, X;
    cin >> N >> M >> X;
    if(M >= X && N - M >= X){
        YES(M >= 3 && N - M >= 3);
    }else if(M >= X){
        YES(M >= 3);
    }else if(N - M >= 3){
        YES(N - M >= 3);
    }else{
        YES(true);
    }
}