Problem

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长gcd

Problem

给出了两个数字。找出它们的最大公约数。
 
输入数据： 输入两个不超过10^9的自然数， （记录10^9表示“10的9次方”，即1000000000）。
输出： 打印输入数字的GCD

例子 <头> <日># <正文>

time 1000 ms
memory 32 Mb
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输入 输出
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