#include<bits/stdc++.h>
#define rep(i,n) for(int i=0; i< (n); i++)
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
const int mod = 998244353;
const int inf = (1<<30);
const ll INF = (1ull<<62);

int main(){
    ll n,s; cin>>s>>n;
    cout<<((n-24 >= s && n <= s*29) ? "Yes" : "No")<<endl;
}