C312322331333132212111133133313331333131133113313331313231311211331   >>    C31232233133313221211113313331333133313113311331333131323131121133   <<    C312322331333132212111133133313331333131133113313331313231311211333   >>      C312322331333132212111133133313331333131133113313331313231311211332   >>