C312322331333132212111133133313331333133312121111331211111211111323131212121   >>    C31232233133313221211113313331333133313331212111133121111121111132313121212   <<    C312322331333132212111133133313331333133312121111331211111211111323131212123   >>      C312322331333132212111133133313331333133312121111331211111211111323131212122   >>