Write a function called solution that does the following:

resf = solution([5,2,1,3], (e) => {
  return e+1
})
resf() // returns 6
resf() // returns 3
resf() // returns 2
resf() // returns 4
resf() // returns 6

resf = solution(["hello", "what", "a", "day"], (e) => {
  if (e.length < 2) return ""
  return e
})
resf() // returns "hello"
resf() // returns "what"
resf() // returns ""
resf() // returns "day"
resf() // returns "hello"
resf() // returns "what"
...