(define (iota n . args)
  (let ((start (if (pair? args) (car args) 0))
        (step  (if (and (pair? args) (pair? (cdr args))) (cadr args) 1)))
    (let loop ((m n) (last (+ start (* step (- n 1)))) (a '()))
      (if (zero? m)
          a
	  (loop (- m 1) (- last step) (cons last a))))))

(define (solve M C)
  (if (null? C)
      0
      (if (>= M (car C))
	  (+ 1 (solve (- M (car C)) (cdr C)))
	  0)))
		
(display (let* ((N (read)) (M (read)) (C (sort (map (lambda (x) (read)) (iota N)) <))) (solve M C)))
(newline)