<?php
    $w = trim(fgets(STDIN));
    $d = trim(fgets(STDIN));
    
    for($i = $d; $i > 1; $i--){
        //echo $d + 1 - $i."日目 ".floor($w / ($i ** 2))."\n";
        $w = $w - floor($w / ($i ** 2));
        //echo $w."\n";
    }
    
    echo $w;

?>