#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ALL(v)  v.begin(),v.end()

signed main(){
    int N,S;
    cin>>N>>S;
    if(N+24<=S&&S<=29*N)cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
}