11--11-1--1-11--1111-1-111-11--1111-11----1-1-1-11---11-1---111111-1----1----11--11-1--11-1--
11-----1111-1-1111-1-11-1-1-------11-1-1-----1--1-----1-1-11-------1-1-11-1-1111-1-1111-----1
1---1---11--1-1---111-11-111-1--11-----1----111111----1-----11--1-111-11-111---1-1--11---1---
11-1-1--1111-11------11--1--11---1----111-1--1--1--1-111----1---11--1--11------11-1111--1-1-1