(let* 
  ((l (string->number (read-line)))
   (n (string->number (read-line)))
   (w (sort! (map string->number (string-split (read-line) " ")))))
  (letrec ((count 
            (lambda (w l) 
              (cond 
                ((null? w) '())
                ((<= (car w) l)
                  (cons (car w) (count (cdr w) (- l (car w)))))
                (else '())))))
   (print (length (count w l)))))