[SNZ - lab1] Tablica na kvadrati, kubovi i koreni

import math

if __name__ == "__main__":
    start_number = int(input())
    end_number = int(input())
    check_key = int(input())
    book = {}
    while start_number <= end_number:
        # first we do the operations with the number and put those in tuple
        aux_tuple = (start_number ** 2, start_number ** 3, math.sqrt(start_number))

        # then we add the tuple in the book with a key start_number, and increment the key for 1
        book[start_number] = aux_tuple
        start_number = start_number + 1

    # reverse logic, if book.keys() doesnt contain check_key print .....
    if check_key not in book.keys():
        print("nema podatoci")
    else:
        print(book[check_key])

    print(book)