<?php

$cash = readline();
$yearsToLive = readline();
$years = 18;

for ($i = 1800; $i <= $yearsToLive; $i++) {
    if ($i % 2 === 0) {
        $cash -= 12000;
    } else {
        $cash -= 12000 + $years * 50;
    }

    $years++;
}

$diff = abs($cash);

if ($cash >= 0) {
    printf("Yes! He will live a carefree life and will have %.2f dollars left.", $diff);
} else {
    printf("He will need %.2f dollars to survive.", $diff);
}

//DvDty