#include <bits/stdc++.h>
    using namespace std;
    #include <math.h>
    #include <iomanip>
    #include <cstdint>
    #include <string>
    #include <sstream>
    #include <random>
    template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
    template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
    #define rep(i,n) for (int i = 0; i < (n); ++i)
    typedef long long ll;
    typedef unsigned long long ull;
    using P=pair<ll,ll>;
    const int INF=1001001001;
    const int mod=1e9+7;

    void solve(){
        ll n,s;
        cin>>n>>s;
        if(n==1&&s>=25&&s<=29){
            cout<<"Yes"<<endl;
        }
        else if(n>=2&&s<=29*n){
            cout<<"Yes"<<endl;
        }
        else{
            cout<<"No"<<endl;
        }
    }  

    int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        
        solve();  
        
        return 0;
    }