function solve(input) {

  let index = 0;

  let n = Number(input[0]);

  let presentationCounter = Number(input[1]);

  let namePresentation = Number(input[2]);

  let averageGradePerPresentation = Number(input[3]);

  let sumGrades = 0;

  let totalGrades = 0;

  let grades = 0;

 while (true == "Finish") {

    presentationCounter += 1;

    for (let i = 0; i <= n; i++) {

      sumGrades = input[index];

      sumGrades += grades;

      index++;

    }

    if (namePresentation != "Finish") {

      averageGradePerPresentation = (sumGrades / n);

    }

    totalGrades += averageGradePerPresentation;

     sumGrades = 0;

    namePresentation = input[index];

    break;

  }

  if (namePresentation != "Finish") {

    console.log(`${namePresentation} - ${averageGradePerPresentation.toFixed(2)}.`);

  }

  if (namePresentation == "Finish") {

    let totalGradesPrint = totalGrades / presentationCounter;

    console.log(`Student's final assessment is ${totalGradesPrint.toFixed(2)}.`); l

  }

}