You will be calculating certain properties of a metal material. Materials can

include copper, silver, and aluminum. The first line of input will be the three materials with the price $($as an integer$)$ in an arbitrary ordering and a space between all materials and prices; for instance: Copper $10$ Aluminum $100$ Silver $1000$

$($a$)$ Write code to take user input lines for a metal name and material prices and split the prices string $($by a space delimiter$)$ to get a list of metal names and prices.

$($b$)$ Using the code from the previous question and the hint about the index function, write code that finds the price of the given metal