#include<bits/stdc++.h>
using namespace std;
int main(){
    double a,b;
    cin>>a>>b;
    if(a<10)
        cout<<"Drizzle"<<endl;
    if(a<25&&a>9)
        cout<<"Moderate Rain"<<endl;
    if(a<50&&a>24)
        cout<<"Heavy Rain"<<endl;
    if(a>49)
        cout<<"Torrential Rain"<<endl;
    else if(b==1&&a>19)
        cout<<"YES";
    else
        cout<<"NO";
    return 0;
}