C1111233131211111211113313331333133313331311211331333133313331333132322122311   >>    C111123313121111121111331333133313331333131121133133313331333133313232212231   <<    C1111233131211111211113313331333133313331311211331333133313331333132322122313   >>      C1111233131211111211113313331333133313331311211331333133313331333132322122312   >>