def f(test, *args):
    res = []
    for arg in args:
        if test(arg):
            res.append(arg)
    return sum(res)
data = [-4, 2, -1, 5, -6, 3]
negative = lambda x: x < 0
neg = f(negative, *data)
positive = lambda x: x > 0
pos = f(positive, *data)
print(neg, pos)