#include<iostream> #include<string> #include<algorithm> #include<cctype> #include<set> #include<bitset> #include<math.h> #include<map> #include<queue> #include <iomanip> using namespace std; int main(){ int i, j, k; cin >> i >> j >> k; if (i <= j && i <= k) cout << "Yes" << endl; else cout << "No" << endl; }