题解 | #记票统计#
记票统计
https://www.nowcoder.com/practice/3350d379a5d44054b219de7af6708894
n = int(input())
ls = list(input().split())
m = int(input())
ld = list(input().split())
d = {}
c = 0
for i in ls:
if i not in d:
c += ld.count(i)
print(i+' : '+str(ld.count(i)))
print("Invalid : "+str(m-c))
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