# define,
# arguments

def cal(x, y, op):


    res = 0

    if op == "+":
        res = x+y
    elif op =="-":
        res = x-y
    elif op =="*":
        res = x*y
    elif op =="/":
        res = x/y
    return res
    


# # call
# result = cal(2, 3, "/")
# print(result)
