function nationalCourt(input) {
    let emp1 = Number(input.shift());
    //console.log(emp1);
    let emp2 = Number(input.shift());
    //console.log(emp2);
    let emp3 = Number(input.shift());
    //console.log(emp3);
    let eff = emp1 + emp2 + emp3;
    let peopleCount = Number(input.shift());
    let hour = 0;

    while (peopleCount > 0) {
        hour++;
        if (hour % 4 === 0) {
            continue;
        }

        peopleCount -= eff;
    }
    console.log(`Time needed: ${hour}h.`);
}

nationalCourt(["5", "6", "4", "20"]);