def accum_dp(xs: list, f, op, e, init: dict):
    dp = init.copy()
    for x in xs:
        pp = {}
        dp, pp = pp, dp
        for fm_key, fm_val in pp.items():
            for to_key, to_val in f(fm_key, fm_val, x):
                dp[to_key] = op(dp.get(to_key, e), to_val)

    return dp


def f(k, v, x):
    ka, kb = k
    a, b, c = x

    yield k, v

    na = ka + a
    nb = kb + b
    if na <= X and nb <= Y:
        yield (na, nb), v+c


N, X, Y = map(int, input().split())

xs = []
for _ in range(N):
    A, B, C = map(int, input().split())
    xs.append((A, B, C))

init = {(0, 0): 0}
dp = accum_dp(xs, f, max, 0, init)
ans = max(dp.values())
print(ans)