First digit after letter X48755

Statement

Write a function @digit_after_let(s)@ that given a string $s$ returns a boolean and a character. The boolean is True when $s$ has some digit after some letter, otherwise is False. The character has to be the first digit in $s$ that comes out after some letter in the first case and the symbol ’$’ in the second one. You can use the string method @isalpha()@ to check whether given a string it has at least one character and all its characters are letters. For instance, @my_string.isalpha()@ is True when @my_string@ is ’HeLLo’ or ’X’ and is False when @my_string@ is ’He7TO’ or ’?;x’ or ’123456’.

Sample session

>>> digit_after_let('123 456')
(False, '$')
>>> digit_after_let('Wrong Answer: -10- has to be -25-')
(True, '1')
>>> digit_after_let('451sTa')
(False, '$')
>>> digit_after_let('X@#2$Z5Y')
(True, '2')

Information

Author: ProAl
Language: English
Official solutions: Python
User solutions: Python