题目描述
Problem Statement
You are given positive integers n, a, and b such that a<b.
An integer pair (L,R) such that $1\leq L\leq R$ is said to be a good pair when the following condition holds.
- Let n_a and n_b be respectively the number of multiples of a and the number of multiples of b among the integers between L and R, inclusive. Then, n_a - n_b = n.
It can be proved that a good pair always exists. Report the good pair with the largest value of R-L. If multiple such pairs exist, report the one with the smallest L (from $1\leq L$, the sought (L, R) with the smallest L exists and is unique).
You have T test cases to solve.
Input
The input is given from Standard Input in the following format:
T
$\text{case}_1$
$\vdots$
$\text{case}_T$
Each test case is given in the following format:
n a b
Output
Print T lines. The i-th line should contain the sought pair (L,R) for the i-th test case in the following format:
L R
Constraints
- $1\leq T\leq 2\times 10^5$
- $1\leq n \leq 10^6$
- $1\leq a < b \leq 10^6$
Sample Input 1
1
3 3 5
Sample Output 1
4 35
(L,R)=(4,35) is a good pair since n_a=10, n_b=7.
Some other good pairs are (1,26) and (10,41). (1,26) is not the answer because it does not have the largest R-L. (10,41) is not the answer because, although it has the largest R-L, it does not have the smallest L.
Sample Input 2
5
4 3 5
6 2 4
1 1 2
123 456 789
9876 54 321
Sample Output 2
10 50
3 29
2 4
5473 140447
163 641411
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分