def part1():
	with open('input.txt','r') as f:
		expenses = [int(x) for x in f]
		for a in expenses:
			for b in expenses:
				if a + b == 2020:
					return a*b

def part2():
	with open('input.txt','r') as f:
		expenses = [int(x) for x in f]
		for a in expenses:
			for b in expenses:
				for c in expenses:
					if a + b + c == 2020:
						return a*b*c

def main():
	print(f'Part 1: {part1()}')
	print(f'Part 2: {part2()}')

if __name__ == "__main__":
	main()