题解 | #放苹果#

import sys




def put(left_num:int, last_plate_load:int, left_plate_num:int):
    result = 0
    if left_plate_num == 1 and left_num >= last_plate_load:
        return 1
    for possible_load in range(last_plate_load, left_num // left_plate_num + 1):
        
        result += put(left_num - possible_load, possible_load, left_plate_num - 1)
    return result

m, n = [int(i) for i in input().split()]

print(put(m, 0, n))