One Button Messaging Device

Imagine a messaging device with only one button. For the letter A, you press the button one time, for E, you press it five times, for G, it's pressed seven times, etc, etc.

Write a function that takes a string (the message) and returns the total number of times the button is pressed.

Examples

how_many_times("abde") ➞ 12

how_many_times("azy") ➞ 52

how_many_times("qudusayo") ➞ 123

Notes

• Ignore spaces.
• The given string argument will be in lower case.