题解 | #[NOIP2013]记数问题#
[NOIP2013]记数问题
http://www.nowcoder.com/practice/28b2d9f2bf2c48de94a1297ed90e1732
a,c = input().split(' ')
b = []
sum=0
for i in range(int(a)):
b.append(i+1)
b1 =list(map(str,b))
for num in b1:
sum = sum +num.count(c)
print(sum)
