Find Alpha Numbers

>> Find Alpha Numbers

const input = ['135', '357', '791', '357', '913', '579', '135'];
const print = this.print || console.log;
const gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

const N = 7;
let arrN = [];

for (let i = 0; i < N; i++) {
  const num = +gets();
  let max = 0;
  let mid = 0;
  let min = 0;
  let maxMin = 0;
  let maxMid = 0;
  let midMin = 0;

  if (num >= 100 && num <= 999) {
    arrN = num.toString().split('').map((el) => +el); // [ 9, 0, 9 ]
    max = Math.max(...arrN); // 9
    min = Math.min(...arrN); // 0
    mid = arrN.reduce((a, b) => a + b, 0) - min - max; // 9

    maxMin = max - min;
    maxMid = max - mid;
    midMin = mid - min;

    const theBiggest = Math.max(maxMin, maxMid, midMin); // print(theBiggest); // 9
    const sumThree = min + mid + max; // print(sumThree); // 18
    const sumThreeArr = sumThree.toString().split('').map((el) => +el); // print(sumThreeArr); // [ 1, 8 ]

    if (theBiggest > sumThreeArr[1]) {
      print(num);
    }
  }
}