#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,m;
    cin>>n>>m;
    int y=n*3+m*60;
    if(y>=480) cout<<"Yes";
    else cout<<"No";
    return 0;
}

#include<bits/stdc++.h> using namespace std; int main() { int a,b; cin>>a>>b; int s=a*3/60; int d=s+b; if (d>=8) { cout<<"Yes"; } else if (d<8) { cout<<"No"; } return 0; }