function CombinedNumbers(array) { return array.map((item, idx) => { if (idx + 1 === array.length) return item + a[0] return item + a[idx + 1] })}
function CombinedNumbers(array) { return array.map((item, idx) => { if (idx + 1 === array.length) return item + a[0] return item + a[idx + 1] })}