def ChooseOption():
    print("1. Addition")
    print("2. Substraction")
    print("3. Multiplication")
    print("4. Division")

    menuchoice = int(raw_input("Enter a choice"))
    if menuchoice == 1:
        Addition()
    elif menuchoice == 2:
        Substraction()
    elif menuchoice == 3:
        Multiplication()
    elif menuchoice == 4:
        Division()
    else:
        print("Choose an option between 1-4")
        ChooseOption()

def Addition():
    Number1 = int(raw_input("Enter Your First Number"))
    Number2 = int(raw_input("Enter Your Second Number"))
    print Number1 + Number2
    ChooseOption()

def Substraction():
    Number1 = int(raw_input("Enter Your First Number"))
    Number2 = int(raw_input("Enter Your Second Number"))
    print Number1 - Number2
    ChooseOption()

def Multiplication():
    Number1 = int(raw_input("Enter Your First Number"))
    Number2 = int(raw_input("Enter Your Second Number"))
    print Number1 * Number2
    ChooseOption()

def Division():
    Number1 = int(raw_input("Enter Your First Number"))
    Number2 = int(raw_input("Enter Your Second Number"))
    print Number1 / Number2
    ChooseOption()

ChooseOption()