<?php

$input_lines = trim(fgets(STDIN));
$input_lines = str_replace(array("\r\n","\r","\n"), "", $input_lines);
do {
    $tmpStr[] = $input_lines;
    $input_lines = trim(fgets(STDIN));
    $input_lines = str_replace(array("\r\n","\r","\n"), "", $input_lines);
} while ($input_lines !== "");

$work = (int)$tmpStr[0];
$day = (int)$tmpStr[1];

while($day > 0){
	$todayWork = floor($work / pow($day,2));
	$work -= $todayWork;
	if($day == 1){
		echo $todayWork;
		break;
	}
	$day--;
}
// your code goes here