1  from lib import *
 2  
 3  input = read_input(2017, 1).strip()
 4  
 5  
 6  print(sum(int(a) for a, b in zip(input, input[1:] + input[0]) if a == b))
 7  
 8  
 9  n = len(input) // 2
10  print(sum(int(a) for a, b in zip(input, input[n:] + input[:n]) if a == b))