Program code that checks 3 user input values with already existing values, and returns a message if they are equal [on hold]

I have to write a program code that will do the following: Ask the user about their 3 sizes, bust, chest and hip, and compare each of the following with a database/excel table of already existing sizes for multiple stores, such as Zara, Springfield, ect. Details: -There are multiple sizes in the tables, L, XL, XXL, S, ect -These sizes have ranges, an S blazer is from 92-94 chest size in Zara, so if i input a 92, I want it to say "it fits you, but its a bit tight" - It will check all stores for matching sizes within acceptable range (+/- 1) starting with chest and (if true) moving on to waist and hip. Thank you so much, any help will be greatly appreciated, and I'm current working on python, but will have no problem working on another programming language