No loop, no list, no string.

1.Write a python code for the following business with kinds of bagels: plain bagel, whole-wheat bagel, and raisin bagel. And there are two toppings: lox and cream cheese. You charge $1.50 for plain bagel, $1.80 for whole-wheat bagel, and $2.10 for a raisin bagel. In addition, you add $0.60 if customers want lox on the bagel and $0.80 for cream cheese (they might want none, one topping, or both). Please define two functions: one for bagel price that asks a bagel type as its parameter and returns a price, one for topping price that asks a topping type as its parameter and returns a price. In the main program, please ask to input, do input validation, call the functions to get the result, then output the result.