#include<bits/stdc++.h>
//using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define rep(i, j, n) for(ll i = ll(j); i < ll(n); i++)
#define REP(i, j, n) for(ll i = ll(j); i <= ll(n); i++)
#define per(i, j, n) for(ll i = ll(j); ll(n) <= i; i--)
#define ALL(a) (a).begin(),(a).end()
#define revALL(a) (a).rbegin(),(a).rend()
#define pb push_back
#define mp std::make_pair
#define mtp std::make_tuple
#define ln "\n"
using std::endl;
using std::cin;
using std::cout;
#define ll long long
using std::vector;
using std::string;
using std::upper_bound;
using std::lower_bound;
const ll MOD = 998244353, root = 3;
const ll MAX = 1e6+10;
const ll inf = (1ll << 60);

//main
int main(){
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
    cout << std::fixed << std::setprecision(15);
    ll N,S; cin >> N >> S;
    string ans = "No";
    ll min = 25, max = N*29;
    if(min <= S && S <= max) ans = "Yes";
    cout << ans << ln;
}