CODE USING LISP... No other language please
trim-to (symbol list) Write a function named trim-to that takesa symbol and list as parameters. Return a new list starting fromthe first occurrence of the input symbol in the input list. Ifthere is no occurrence of the symbol, return nil. For example:(trim-to ‘c ‘(a b c d e)) This should return the following list:‘(c d e)
ackermann (number number)
Write a function named ackermann that takes twointegers. Use the following function definition: (Note: due to thisfunction’s complexity it may not finish for inputs larger than3)
?(?,?)={?+1 ?? ?=0?(?−1,1) ?? ?=0?(?−1,?(?,?−1)) ??ℎ??????