/* 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 m=a,n=b;
while (m!=n){
int dif = m-n
if (dif > n){
m = dif;
}
else {
m = n;
n=dif;
}
}
return m;
}
}
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