word = input()
number = {}
for w in word:
    if w not in number.keys():
        number[w] = 1
    else:
        number[w] += 1
number = number.values()
maxn = max(number)
minn = min(number)
sub = maxn - minn
def isPrime(n):
    if n % 2 == 0 and n != 2:
        return False
    for count in range(3,n,2):
        if n % count == 0:
            return False
    return True
if isPrime(sub):
    print('Lucky Word')
    print(sub)
else:
    print('No Answer')
    print(0)