favorite We need a little bit of your help to keep things running, click on this banner to learn more
Competitions

# GCD of two numbers

Find the GCD (greatest common divisor) of two nonnegative integers.

#### Input

Two integers a and b (a, b < 2∙109).

#### Output

Print the GCD of a and b.

Time limit 1 second
Memory limit 128 MiB
Input example #1
42 24

Output example #1
6