C312322331333132212111133133313331333133312121111331211111121333131123332321   >>    C31232233133313221211113313331333133313331212111133121111112133313112333232   <<    C312322331333132212111133133313331333133312121111331211111121333131123332323   >>      C312322331333132212111133133313331333133312121111331211111121333131123332322   >>