A455_abc455a.cpp

#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int a, b, c; cin >> a >> b >> c;
  if (a!=b && b==c) cout << "Yes\n";
  else cout << "No\n";
  return 0;
}