Dev Skill DCP-85: Tomorrow is Eid !! Solution

Problem Link
Dev Skill DCP-85: Tomorrow is Eid !! Solution

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,t;
    cin>>t;
    if(t==30 || t==29)
        cout<<"YES"<<endl;
    else
        cout<<"NO"<<endl;
    return 0;
}