Question: Using Python. User recursion to implement a function def indexOfftext, string) that returns the starting position of the first substring of text that matches string.
Using Python. 
User recursion to implement a function def indexOfftext, string) that returns the starting position of the first substring of text that matches string. Return -1 if string is not substring of the text. Foe example, s.indexOf("Mississippi", "sip") returns 6; s.indexOf("Alabama", "sip") returns -1 Example output: Matched results for Mississippi and sip: 6 Expected index number is 6 Matched results for Alabama and sip: -1 Expected index number is -1
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