Chap10Q1.py

def push(stack,x):
    stack.append(x)
def pop(stack):
    return stack.pop()

l=[4,5,6,7]
ans=int(input("Enter your choice:\n1:Press 1 to Push \n2:Press 2 to Pop\n Your Option:"))
if ans==1:
    n=int(input("Enter element to push on stack:"))
    push(l,n)
    print(l)
elif ans==2:
    pop(l)
    print("The last entered element was popped!",)
    print(l)
else:
    print("Invalid Choice! Try again")