#include <bits/stdc++.h>
#define f(i, s, k, l) for (int i = s; i < k; i += l)
#define for0(i, k) f(i, 0, k, 1)

#define pl pair<long long, long long>
#define pb push_back

#define vl vector<long long>
#define vi vector<int>
#define sz(x) (ll)(x).size()

using namespace std;
using ll = long long;
using ld = float;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

    ll x, y;
    cin >> x >> y;
    if (2 * (x % 30) == y / 6) cout << "yes" << endl;
    else cout << "no" << endl;
}