#include <bits/stdc++.h>
using namespace std;
void solve(int t) {
  int n, k, m;
  cin >> n >> m >> k;
  if (n <= k && n <= m) {
    cout << "YES";
  } else
    cout << "NO";
}
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int t, tmp = 0;
  t = 1;
  while (tmp++ < t) {
    solve(tmp - 1);
  }
  cerr << "Time : " << (double)clock() / (double)CLOCKS_PER_SEC << "s\n";
  return 0;
}
