import aoclib

if 'TEST' not in globals():
    TEST = False

my_input = aoclib.getInputLineAsArray(1, int, test=TEST)

globalBreak = False
while len(my_input) > 0:
    try_value = my_input.pop()
    for value_1 in my_input:
        for value_2 in my_input:
            if value_1 == value_2:
                continue
            if try_value + value_1 + value_2 == 2020:
                aoclib.printSolution(1, 2, try_value * value_1 * value_2, test=TEST)
                globalBreak = True
                break

        if globalBreak:
            break

    if globalBreak:
        break