01. Back To The Past

function backToThePast(input) {
    let money = Number(input[0]);
    let year = Number(input[1]);
    let ivanchoAge = 18;

    for (let i = 1800; i <= year; i++) {
        if (i % 2 === 0) {
            money -= 12000;
        } else {
            money -= 12000 + 50 * ivanchoAge;
        }
        ivanchoAge++;
    }

    if (money < 0) {
        console.log(`He will need ${Math.abs(money).toFixed(2)} dollars to survive.`)
    } else {
        console.log(`Yes! He will live a carefree life and will have ${money.toFixed(2)} dollars left.`)
    }
}