Hi, I have a question, how do I program a python code which asks the user what they want to calculate (speed(m/s) or distance(m) or time(s)) and the user will input the values of the three and tell the code which one they want to be calculated. Eg. the user enters speed = 10, distance = 5, time = 20, then the user enters s or d or t and the code will calculate either speed, distance or time according to what letter (s, d, t) the user inputs along with the values.