def sum_in(numbers,_sum):
	solve=[]
	x=0
	for x in range(pow(2,len(numbers))-1):
		b=bin(x)
		b=b[2:]
		while len(b)<len(numbers):
			b="0"+b
		s=0
		for d in range(len(b)):
			if b[d]=="1" :
				s+=numbers[d]
		if s==_sum :
			solve.append(b)
	final=[]
	for x in range(len(solve)):
		result=[]
		for d in range(len(numbers)) :
			if solve[x][d]=="1":
				result.append(numbers[d])
		final.append(result)
	return final