public class Practice_Questions {

	public static void main(String[] args) {
		Stack<Integer> stk1 = buildStack(1);
		Stack<Integer> stk2 = buildStack(2);

		printStack(stackOfSums(stk1, stk2));
	}
	/*
	 * q2
	 */
	public static Stack<Integer> digitApperance(Stack<Integer> s1){

	}
	/*
	 * q1
	 */
	public static Stack<Integer> stackOfSums(Stack<Integer> s1, Stack<Integer> s2){

		Stack<Integer> sumStack = new Stack<Integer>();

		return sumStack;
	}
	/*
	 * builds stack for question usage
	 * input - required stack by order of the questions
	 */
	public static Stack<Integer> buildStack(int stack_num){
		Stack<Integer> stk = new Stack<Integer>();
		switch(stack_num) {
		case 1:

			stk.push(1);
			stk.push(4);
			stk.push(4);
			return stk;

		case 2:
			stk.push(2);
			stk.push(4);
			stk.push(3);
			return stk;
		default:
			break;

		}
		return stk;
	}
	public static int stackSize(Stack<Integer> s) {
		int count = 0;
		Stack<Integer> tmp = new Stack<Integer>();
		while(!s.isEmpty()) {
			tmp.push(s.pop());
			count++;
		}
		while(!tmp.isEmpty()) {
			s.push(tmp.pop());
		}
		return count;
	}
	public static void printStack(Stack<Integer> s) {
		Stack<Integer> tmp = new Stack<Integer>();
		while(!s.isEmpty()) {
			System.out.println("|_"+s.top()+"_|");

			tmp.push(s.pop());
		}
		while(!tmp.isEmpty()) {

			s.push(tmp.pop());
		}
	}
}