import Adt.Stack;

public class Q {

	public static void main(String[] args) {
		Stack s = new Stack<Integer>();
		Stack <TwoItems> c = new Stack<TwoItems>();
		s.push(9);
		s.push(4);
		s.push(7);
		s.push(5);
		s.push(5);
		s.push(32);
		s.push(6);
		s.push(1);
		System.out.println(lastAndRemove(s));

	}
	 public static int size(Stack<Integer> s) {
	        Stack<Integer> buff = new Stack<Integer>();
	        int c = 0;
	        while(!s.isEmpty()) {
	            c ++;
	            buff.push(s.pop());
	        }
	        while(!buff.isEmpty()) s.push(buff.pop());
	        return c;
	    }
	 public static int lastAndRemove(Stack<Integer>st)
     {
   	 int last=0;
   	 // In my test here was only ( int last; ) instead of ( int last=0; )so I lost 2 points here. The other part of method is working correctly
   	 Stack<Integer>tmp=new Stack<Integer>();
   	 while(!st.isEmpty())
   	 {
   		last=st.pop();
   		if(!st.isEmpty())
   			tmp.push(last);
   	 }
   	 while(!tmp.isEmpty())
   		 st.push(tmp.pop());
   	 return last;
     }





}