#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #pragma warning(disable:4996) //#define ATCODER #ifdef ATCODER #include #endif typedef long long ll; typedef unsigned long long ull; #define LINF 9223300000000000000 #define LINF2 1223300000000000000 #define LINF3 1000000000000 #define INF 2140000000 const long long MOD = 1000000007; //const long long MOD = 998244353; using namespace std; #ifdef ATCODER using namespace atcoder; #endif void solve() { int a, b; scanf("%d%d", &a, &b); if ((a==2&&b==4)||(a==4&&b==2)||a == b) { printf("Yes\n"); } else { printf("No\n"); } return; } int main() { #if 1 solve(); #else int T, t; scanf("%d", &T); for (t = 0; t < T; t++) { //printf("Case #%d: ", t + 1); solve(); } #endif return 0; }