text: """
  Advent Of Code 2021
  Day 7
  Date: 07-12-2021
  Site: https://adventofcode.com/2021/day/7
  Author: Tayyrov
  """
  
  import sys
  import math
  from statistics import mean
  
  file1 = open('../input_files/day7_input', 'r')
  numbers = list(map(int, file1.readlines()[0].split(",")))
  
  average_value = int(mean(numbers))
  answer = 0
  
  for n in numbers:
      difference = abs(n-average_value)
      answer += difference*(difference+1)//2
  
  print(f"The answer for day 6 task2 is {answer}.")