P25077 [AtCoder] Simple Math 2
普及
题目描述

Problem Statement

Given positive integers N and M, find the remainder when $\lfloor \frac{10^N}{M} \rfloor$ is divided by M.

What is $\lfloor x \rfloor$?
$\lfloor x \rfloor$ denotes the greatest integer not exceeding x. For example:

  • $\lfloor 2.5 \rfloor = 2$
  • $\lfloor 3 \rfloor = 3$
  • $\lfloor 9.9999999 \rfloor = 9$
  • $\lfloor \frac{100}{3} \rfloor = \lfloor 33.33... \rfloor = 33$

Input

Input is given from Standard Input in the following format:
N M

Output

Print the answer.

Constraints

  • $1 \leq N \leq 10^{18}$
  • $1 \leq M \leq 10000$

Sample Input 1

1 2

Sample Output 1

1

We have $\lfloor \frac{10^1}{2} \rfloor = 5$, so we should print the remainder when 5 is divided by 2, that is, 1.

Sample Input 2

2 7

Sample Output 2

0

Sample Input 3

1000000000000000000 9997

Sample Output 3

9015

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
1 2
样例输出
1