Character recognition software often makes mistakes when documents (especially old ones written with a typewriter) are digitized.
Your task is to correct the errors in the digitized text. You only have to handle the following mistakes:
The test cases contain numbers only by mistake.
keyboard_mistakes("MUB45H1R") ➞ "MUBASHIR"
keyboard_mistakes("DUBL1N") ➞ "DUBLIN"
keyboard_mistakes("51NG4P0RE") ➞ "SINGAPORE"
N/A