Graduation pt.2

function solve(input) {
  let name = input.shift();
  let counter = 1;
  let sum = 0;
  let excluded = 0;
  let isExcluded = false;

  while (counter <= 12) {
    let currentNum = Number(input.shift());
    if (currentNum >= 4.0) {
      sum += currentNum;
      counter++;
    }
    if (currentNum < 4.0) {
      excluded++;
    }
    if (excluded >= 2) {
      isExcluded = true;
      break;
    }
  }
  if (isExcluded == false) {
    let avrGrade = sum / 12;
    console.log(`${name} graduated. Average grade: ${avrGrade.toFixed(2)}`);
  } else {
    console.log(`${name} has been excluded at ${counter} grade`);
  }
}