C1111133313331323223313331333133313331323131211113312113313121332311   >>    C111113331333132322331333133313331333132313121111331211331312133231   <<    C1111133313331323223313331333133313331323131211113312113313121332313   >>      C1111133313331323223313331333133313331323131211113312113313121332312   >>