№23 — #23128

from functools import lru_cache
@lru_cache(None)
def f(a, b):
    if a == b:
        return 1
    if a < b:
        return 0
    return f(a - 3, b) + f(a - 5, b) + f(a // 2, b)
@lru_cache(None)
def f1(a, b):
    if a == 14:
        return 0
    if a == b:
        return 1
    if a < b:
        return 0
    return f1(a - 3, b) + f1(a - 5, b) + f1(a // 2, b)
@lru_cache(None)
def f2(a, b):
    if a == 30:
        return 0
    if a == b:
        return 1
    if a < b:
        return 0
    return f2(a - 3, b) + f2(a - 5, b) + f2(a // 2, b)
print(f(66, 30) * f1(30, 2) + f2(66, 14) * f(14, 2))