Exercise$2$ Assume that you have the given code. Firstly, find and understand the problems. Then, try to update example$2().$def example$2($ L$)$: #L is a list that consists of integer numberssum $=0$sumOfPairs $=[$Ifor i in range$($ len$($ L$))$:sumOfPairs.append$($L$[$i$]+$L$[$i$+1])$print$($ "sumOfPairs$=",$ sumOfPairs$)$L $=[10,3,5,6,9,3]$example Lexample$2([10,3,5,6,"$NA$",3])$