def read_file():
    input_file = open("input.txt", "r")
    if input_file.mode == 'r':
        return input_file.read()
b087dd8acab205611158aa97bb99354e6a55c43d
<mask token>

def read_file():
    input_file = open('input.txt', 'r')
    if input_file.mode == 'r':
        return input_file.read()

def read_file():
    input_file = open("input.txt", "r")
    if input_file.mode == 'r':
        return input_file.read()