function solve(input) {
    let nameStudent = input.shift();
    let grades = Number(input.shift());
    let sum = 0;
    let counter = 0;
    let lowGrades = 0;

    for (let i = 0; i < 12; i++) {

        if (grades < 4) {
            lowGrades++;
            if (lowGrades > 1) {
                console.log(`${nameStudent} has been excluded at ${counter} grade`);
                break;
            }
        }
        sum += grades;
        counter++;
        grades = Number(input.shift());
    }
    if (lowGrades < 2) {
        console.log(`${nameStudent} graduated. Average grade: ${(sum / 12).toFixed(2)}`);
    }
}