C1111133313331323223313331333133313331323131211113313223231311211321   >>    C111113331333132322331333133313331333132313121111331322323131121132   <<    C1111133313331323223313331333133313331323131211113313223231311211323   >>      C1111133313331323223313331333133313331323131211113313223231311211322   >>