1 2 3 4 5 6 7 8 9 10 11 12 13
12 ...1.1....1. 0......0...0 ..00......1. .1.........1 ...1..001... 1.11.1.0..1. ......1...1. 0.0.1....... ......010.1. .0..1....11. ...0...1.... .....00..0..