#include <bits/stdc++.h>

using namespace std;
#define ll long long
int main()
{
string s;
cin>>s;int c1=0,c2=0,n=s.length();
for(int i=0;i<n;i++)
{
    if(i%2==0)
    {
       if(s[i]>=97&&s[i]<=122)
       {
           ++c1;
       }
    }
    if(i%2==1)
    {
        if(s[i]>=65&&s[i]<=90)
        {
            ++c2;
        }
    }
}
if(c1+c2==n)
{
    cout<<"Yes";
}
else
{
    cout<<"No";
}
    return 0;
}

#include <bits/stdc++.h>
using namespace std;

int main() {
#ifndef ONLINE_JUDGE
	// for getting input from input.txt
	freopen("input.txt", "r", stdin);
	// for writing output to output.txt
	freopen("output.txt", "w", stdout);
#endif

	int N;

	cin >> N;

	int tax = N * 1.08;

	if (tax < 206) {
		cout << "Yay!" << endl;
	} else if (tax == 206) {
		cout << "so-so" << endl;
	} else {
		cout << ":(" << endl;
	}
	return 0;
}