C1111133313331323223313331333133313331323131211113313221213332321   >>    C111113331333132322331333133313331333132313121111331322121333232   <<    C1111133313331323223313331333133313331323131211113313221213332323   >>      C1111133313331323223313331333133313331323131211113313221213332322   >>