GCD2

Problem code: GCD2

All submissions for this problem are available.

Frank explained its friend Felman the algorithm of Euclides to calculate the GCD of two numbers. Then Felman implements it algorithm

int gcd(int a, int b)
{
	if (b==0)
		return a;
	else
		return gcd(b,a%b);
}

and it proposes to Frank that makes it but with a little integer and another integer that has up to 250 digits.

Your task is to help Frank programming an efficient code for the challenge of Felman.

Input

The first line of the input file contains a number representing the number of lines to follow. Each line consists of two number A and B (0 <= A <= 40000 and A <= B < 10^250).

Output

Print for each pair (A,B) in the input one integer representing the GCD of A and B.

Example

Input:
2
2 6
10 11


Output:
2
1

Date:	2008-12-01
Time limit:	0.5s
Source limit:	1000B
Languages:	All except: PERL6 C99 strict JAVA PERL PYTH RUBY PHP LISP sbcl LISP clisp ERL
Resource:	My own Resource

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HELP

Program should read from standard input and write to standard output.

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