graduationF*ck

function graduation(input) {
//Input
  let studentName = input[0];
  let currentGrade = 0;
  let totalGrade = 0;
  let averageGrade = 0;

//Code
  let gradeCounter = 0;
  let i = 1;

  while (i < input.length) {
    currentGrade = Number(input[i]);

    if (currentGrade < 4) {
      //Fail
      continue;
    } else {
      totalGrade += currentGrade;
    }

    i++;
    gradeCounter++;
  }

//Avg
  averageGrade = totalGrade / gradeCounter;

//Output
  console.log(`${studentName} graduated. Average grade: ${averageGrade.toFixed(2)}`);
}