/**
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**/

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

using namespace std;

int gcd(int a, int b) {
    while (b) {
        int c = a;
        a = b;
        b = c % b;
    }
    return a;
}

int32_t main() {
    int a, b, c;
    cin >> a >> b;
    if (a <= 8 && b <= 8) cout << "Yay!";
    else cout << ":(";
    return 0;
}

Measured memory_bytes: 256