In this exercise you will be given a string containing ONLY the following characters: v and ^.
The v means the elevator will go down one floor. The ^ means the elevator will go up one floor. Assume the elevator starts on floor 0.
Given a string in this format, create a function that returns the floor the elevator will land at.
If the elevator goes lower than floor zero, return a string informing the user that the elevator has, unfortunately, crashed.
Open prompt.py and solve this problem in python.
Given the following string: "^^^vv^^^v^^"
Your function should return 5. The elevator goes up to floor 3, back down two floors to 1, up three back to 4, down one to 3 and finally back up two to 5.