n = int(input())
S = input()

if 'Hello, World!' in S or '99 bottles of beer on the wall, 99 bottles of beer.' in S:
    n -= S.count('Hello, World!') * (len('Hello, World!')-1)
    S = S.replace('Hello, World!', 'H')
    n -= S.count('99 bottles of beer on the wall, 99 bottles of beer.') * (len('99 bottles of beer on the wall, 99 bottles of beer.')-1)
    S = S.replace('99 bottles of beer on the wall, 99 bottles of beer.', '9')
    if (set(S) == {'H'} or set(S) == {'9'} or set(S) == {'H', '9'} or set(S) == {'9', 'H'}) and len(S) == n:
        print(S)
    else:
        print(-1)
elif 'H' not in S and '9' not in S and 'Q' in S:
    print(S)
else:
    print(-1)