array = STDIN.read.chomp.split("").map(&:to_i)
part_1 = array.zip(array.rotate).select { |a, b| a == b }.map(&:first).sum

puts "Part 1: #{part_1}"

part_2 = array.zip(array.rotate(array.length / 2)).select { |a, b| a == b }.map(&:first).sum

puts "Part 2: #{part_2}"