C312322331333132212111133133313331312111133132313331323231311212121   >>    C31232233133313221211113313331333131211113313231333132323131121212   <<    C312322331333132212111133133313331312111133132313331323231311212123   >>      C312322331333132212111133133313331312111133132313331323231311212122   >>