In the instructions for dealing with backstring position numbers, you state that in the string "hello" the h is in the 0 position, and the e is in the 1 position. However, if you enter "hello".substring (0,1) you get "h" In fact, you show that if you want to return the two letters "he" you have to enter (0,2). I think I understand that we have to subtract 1 from the actual position of the first character, so the first letter of "hello" is actually at 1, but if we want to include it, we have to enter 0. It's sort of like "from x up to and including y." Would that be a correct interpretation?
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