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hi everyone so today were going to be looking at inserting a string in a specific area in a string in a variable that holds a string so youll see this commonly in for as an example in a telephone app for example so if we were to have gonna create a variable here called my number and lets say theres a telephone number in here and the top phone number is a string because youve got it from the end-user except this is alright except its not very formatted very well and you want to put dashes in in between right in between the 3 and the 4 and the 6 and the 7 obviously so how would you do that how would you insert a dash character a strength in a string so its very easy so you call the variables so in this case its called my number right dot insert and what were inserting here is were inserting a character at a specific index so its the first one so the new element is well its just a dash right and were inserting it at my number dot index dot index and what we want to do here i