/* 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 void main (String[] args) throws java.lang.Exception
	{
	class test {
int a;
int b;
test(int i, int j) {
a = i;
b = j;
}
void meth(test o) {
o.a *= 2;
o.b /= 2;
}          
}   
 
class Output{
public static void main(String args[])
{
test obj = new test(10 , 20);
obj.meth(obj);
System.out.println(obj.a + " " + obj.b);        } 
}	// your code goes here
	}
}

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