Problem A
Chinese Remainder

Input

The first line of input consists of an integers $T$ where $1 \leq T \leq 1000$ , the number of test cases. Then follow $T$ lines, each containing four integers $a$ , $n$ , $b$ , $m$ satisfying $1 \leq n, m \leq 10^{9}$ , $0 \leq a < n$ , $0 \leq b < m$ . Also, you may assume $gcd (n, m) = 1$ .

Output

For each test case, output two integers $x$ , $K$ , where $K = n m$ and $0 \leq x < K$ , giving the solution $x (\mod K)$ to the equations $x = a (\mod n), x = b (\mod m)$ .

Sample Input 1	Sample Output 1
2 1 2 2 3 151 783 57 278	5 6 31471 217674

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CPU Time limit1 second

Memory limit1024 MB

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Source & LicensePer AustrinKTH CSC Popup 2005

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Problem AChinese Remainder

Input

Output

Problem A
Chinese Remainder