A12048. Unnatural Conditions
编程题
普及/提高-
知识点
题目描述
Let $s(x)$ be sum of digits in decimal representation of positive integer $x$ . Given two integers $n$ and $m$ , find some positive integers $a$ and $b$ such that
- $s(a) \ge n$ ,
- $s(b) \ge n$ ,
- $s(a + b) \le m$ .
- $s(a) \ge n$ ,
- $s(b) \ge n$ ,
- $s(a + b) \le m$ .
输入格式
The only line of input contain two integers $n$ and $m$ ( $1 \le n, m \le 1129$ ).
输出格式
Print two lines, one for decimal representation of $a$ and one for decimal representation of $b$ . Both numbers must not contain leading zeros and must have length no more than $2230$ .
输入输出样例
输入 #1
6 5
输出 #1
6 7
输入 #2
8 16
输出 #2
35 53
说明/提示
In the first sample, we have $n = 6$ and $m = 5$ . One valid solution is $a = 6$ , $b = 7$ . Indeed, we have $s(a) = 6 \ge n$ and $s(b) = 7 \ge n$ , and also $s(a + b) = s(13) = 4 \le m$ .