C312322331333132212111133133313331312111133132313113313232122311   >>    C31232233133313221211113313331333131211113313231311331323212231   <<    C312322331333132212111133133313331312111133132313113313232122313   >>      C312322331333132212111133133313331312111133132313113313232122312   >>