<?php
list($n, $h, $m, $t) = explode(" ", trim(fgets(STDIN)));
$totalm = ($h * 60 + $m) + $t * ($n - 1);
$h = floor($totalm / 60);
$m = $totalm % 60;

if ( $h >= 24 ) {
    while ( $h >= 24 ) {
        $h = $h % 24;
    }
}

echo $h."\n".$m."\n";