def diff(sorted_list, length):	if not sorted_list:		return (([],[]))	last = sorted_list[-1]	big_list, small_list = diff(sorted_list[:-1],length)	big_list_sum = sum(big_list)	small_list_sum = sum(small_list)	if big_list_sum > small_list_sum:		if len(small_list) >= length:			big_list.append(last)		else:			small_list.append(last)		return ((big_list, small_list))	else:		if len(big_list) >= length:			small_list.append(last)		else:			big_list.append(last)		return ((small_list, big_list))def deal(one, two):	for i in xrange(len(one)-1,-1,-1):		for j in xrange(len(two)-1,-1,-1):			d = abs(sum(one) - sum(two))			if 0<= one[i] - two[j] <=d:				one[i], two[j] = two[j], one[i]	return ((one, two))a = [1,3,5,7,99,100,200]b = [2,4,6,88,10,9,233]length = len(a)a.extend(b)p = sorted(a,reverse=True)one, two = diff(p, length)one, two = deal(one, two)PRint oneprint twoprint sum(one), sum(two), sum(one) - sum(two)