#include<bits/stdc++.h>
#define ll long long int

using namespace std;

int main(){
    ll n;
    cin>>n;

    ll ans = (n*(1.08));

    if(ans < 206){
        cout<<"Yay!"<<endl;
    }else if(ans == 206){
        cout<<"so-so"<<endl;
    }else{
        cout<<":("<<endl;
    }

    return 0;
}
#include <bits/stdc++.h>
#define rep(i, n) for (ll i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<ll, ll>;

int main() {
  string s;
  cin >> s;
  ll ans = 0;
  rep(i, s.size() - 3) if (s.substr(i, 4) == "ZONe") ans++;
  cout << ans << endl;
  return 0;
}
