C312322331333132212111133133313331333133312121111331333313233221   >>    C31232233133313221211113313331333133313331212111133133331323322   <<    C312322331333132212111133133313331333133312121111331333313233223   >>      C312322331333132212111133133313331333133312121111331333313233222   >>