function EqualArrays(arr1, arr2) {
  let sum = 0;
  let dif = 0;
  let arrDif = false;
  for (let i = 0; i <= arr1.length - 1; i++) {
    let newArr1 = 0;
    let newArr2 = 0;
    for (let j = 0; j <= arr1.length - 1 - i; j++) {
      newArr1 = Number(arr1[j]);
    }
    for (let k = 0; k <= arr2.length - 1 - i; k++) {
      newArr2 = Number(arr2[k]);
    }
    if (newArr1 === newArr2) {
      sum += newArr1;
    } else {
      dif = i;
      console.log(`Arrays are not identical. Found difference at ${dif} index`);
      arrDif = true;
      break;
    }
  }
  if (arrDif === false) {
    console.log(`Arrays are identical. Sum: ${sum}`);
  }
}
EqualArrays(["10", "20", "30"], ["10", "20", "30"]);