begin = input()
ls1 = {}
for i in range(len(begin)):
    if i not in ls1:
        ls1[begin[i]] = 1
    else:
        ls1[begin[i]] += 1
max_one = max(list(ls1.values()))
min_one = min(list(ls1.values()))
num = max_one - min_one
if num % 2 == 0:
    print('Lucky Word')
    print(num)
else:
    print('No Answer')
    print(0)