def fact(num):
    sum = 1
    for i in range(1, num + 1):
        sum*=i
    return sum
a = int(input())
for i in range(0, a):
    strnum = input().split(' ')
    d = str(fact(int(strnum[0])))
    sum = 0
    for j in d:
        if j == strnum[1]:
            sum += 1
    print(sum)

样例都过了，数据点全爆零，而且每个数据点都显示第一列第一行读到字符0