题解 | 笨小猴

from math import ceil
inp = list(input())
def test(i):
    a = inp.copy()
    while i in a:
        a.remove(i)
    return len(inp) - len(a)
max = 0
min = len(inp)
for i in set(inp):
    c = test(i)
    if c>max:
        max = c
    if c<min:
        min = c
ans = max-min
if ans>2:
    for j in range(2,ceil((ans**0.5))):
        if ans%j==0:
            print('No Answer')
            print(0)
            break
    else:
        print('Lucky Word')
        print(ans)
elif ans==2:
    print('Lucky Word')
    print(ans)
else:
    print('No Answer')
    print(0)