<?php

$cash = readline();
$yearstoliveto = readline();
$casheven = 0;
$cashodd = 0;
$years = 18;
for ($i = 1800; $i <= $yearstoliveto; $i++) {
     $years = $years++;
    if ($i % 2 == 0) {
        $casheven += 12000;

    } else{

        $cashodd = $cashodd + 12000 + $years * 50;
    }
 }
$Diff = abs($cash - ($cashodd + $casheven));
if ($cash >= $cashodd + $casheven) {
    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);
}