Graduation

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

  while (counter <= 12) {
    let currentNum = Number(input.shift());
    if (currentNum >= 4.0) {
      sum += currentNum;
      counter++;
    }
  }
  let avrGrade = sum / 12;
  console.log(`${name} graduated. Average grade: ${avrGrade.toFixed(2)}`);
}