Queue_Implementation_Stack_Type2

"""
-> Direct Push In Stack One
-> When Called Pop If Stack Two Is Empty Load All Stack One Elements In Stack Two Else
    Pop From Stack Two
"""
class Queue:
    def __init__(self):
        self.OneStack = []
        self.TwoStack = []

    def Push(self, Val):
        self.OneStack.append(Val)

    def Pop(self):
        if(self.TwoStack):
            print(self.TwoStack.pop())
        else:
            while(self.OneStack):
                self.TwoStack.append(self.OneStack.pop())
            print(self.TwoStack.pop())

    def Top(self):
        print(self.TwoStack[-1])

ObjQueue = Queue()
ObjQueue.Push(1)
ObjQueue.Push(2)
ObjQueue.Push(4)
ObjQueue.Pop()
ObjQueue.Pop()
ObjQueue.Pop()