def load_lists():
    list_1 = []
    list_2 = []
    with open('./input.txt', 'r') as reader:
        for l in reader:
            ids = l.split('   ')
            list_1.append(int(ids[0]))
            list_2.append(int(ids[1]))
    list_1.sort()
    list_2.sort()
    return list_1, list_2