/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
}
public static int gcd(int a, int b)
{
int c = a;
int d = b;
while (c!=d) {
if(c>d)
{c= c-d;}
else
{d= d-c;}
}
return c;
}
}
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