(use util.stream)

(define (fib-mod m)
  (stream-cons 0
    (stream-cons 1
      (stream-map (lambda (x y) (modulo (+ x y) m))
        (fib-mod m)
        (stream-cdr (fib-mod m))))))

(define yuki526
  (let* ((n (read)) (m (read)))
    (print (stream-ref (fib-mod m) (- n 1)))))