C312322331333132212111133133313331312111133132313113313231313313231   >>    C31232233133313221211113313331333131211113313231311331323131331323   <<    C312322331333132212111133133313331312111133132313113313231313313233   >>      C312322331333132212111133133313331312111133132313113313231313313232   >>