#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(n); i++)



int main(){
    int N; cin >> N;
    int S; cin >> S;
    bool ans = true;
    if(S < 25) ans = false;
    if(N*29 < S) ans = false;
    cout << (ans ? "Yes" : "No") << "\n";
    return 0;
}


struct ios_do_not_sync{
    ios_do_not_sync(){
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
    }
} ios_do_not_sync_instance;