ABC215_A

ABC215_A.py

import sys, math, copy
from fractions import gcd
from collections import Counter, deque, defaultdict
from heapq import heappush, heappop, heappushpop, heapify, heapreplace, merge
from bisect import bisect_left, bisect_right, bisect, insort_left, insort_right, insort
from itertools import accumulate, product, permutations, combinations
from operator import itemgetter
# sys.setrecursionlimit(1000000)
def input(): return sys.stdin.readline().rstrip()
def main():
    mod = 10**9 + 7
    inf = 10**10
    
    s = input()
    if s ==  "Hello,World!":
        print("AC")

    else:
        print("WA")    
    
if __name__=='__main__':
    main()