задача 2 от упражненията While цикъл

function solve(input) {
    let index = 0;
    let maxUnsatisfyingGrades = Number(input[index++]);
    let unsatisfyingGrades = 0;
    let gradesSum = 0;
    let problemsCount = 0;
    let lastProblem = undefined;

    let currentProblem = input[index++];
    while(currentProblem !== "Enough") {
        let currentGrade = Number(input[index++]);

        if (currentGrade <= 4) {
            unsatisfyingGrades++;

            if(unsatisfyingGrades === maxUnsatisfyingGrades) {
                break;
            }
        }

        gradesSum += currentGrade;
        problemsCount++;
        lastProblem = currentProblem;

        if(unsatisfyingGrades === maxUnsatisfyingGrades) {
            console.log(`You need a break, ${maxUnsatisfyingGrades} poor grades.`);
             } else {
                console.log(`Average score: ${(gradesSum / problemsCount).toFixed(2)}`);
                console.log(`Numbers of problems: ${problemsCount}`);
                console.log(`Last problem: ${lastProblem}`);
            }
        }