/* 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
{
{
// your code goes here
Stack
<Integer
> q
= new Stack(); q.push(2);
q.push(4);
q.push(6);
while(!q.empty()) {
}
}
}
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