I need to use clojure. Do not use any of the built-in Clojure functions/macros except: def, defn, fn, if, cond, let, arithmetic operations, comparison operations, and, or, not, str, conj, cons, first, rest, nth, zero?, empty?, nil?, odd?, even?, assoc 5. Define a function fifth that takes a single list argument (containing at least 5 elements) and returns the fifth element of that list. 6. Define a function tenth that takes a single vector argument (containing at least ten elements) and returns the tenth element of that vector. 7. Define a function sum5 that takes a single list argument (containing at least 5 numeric elements) and returns the sum of the first five elements of that list.