#In the previous problem, you wrote a function that would #convert text like "abcd efgh ijkl" into "AbCd eFgH IjKl". # #In the previous problem, you could assume the original #string would be all lower-case, with no punctuation. # #Revise your function so that it no longer makes these #assumptions. It should leave any punctuation marks or #numerals unchanged, and it should change the case of #every letter at an even index. That means if the letter #is initially uppercase, it should be converted to lower #case. # #For example: mock("Abcd. Efgh.. Ijkl!") would return #"abCd. efGh.. IJkL!". The even-index letters (A, C, E, g, #j, l) changed case, all other characters were unchanged. # #HINT: Lowercase letters always have an ordinal between #97 ("a") and 122 ("z"). Uppercase letters always have an #ordinal between 65 ("A") and 90 ("Z"). #Write your function here!