def count_red_packets(n):
    count = 0
    for i in range(1, n):
        if i % 3 == 0 or i % 8 == 0 or i % 38 == 0:
            count += 1
    return count

n = 2025
result = count_red_packets(n)
print("老板总共得发 {result} 个红包")