C312322331333132212111133133313331323132322331333133313112211232323131   >>    C31232233133313221211113313331333132313232233133313331311221123232313   <<    C312322331333132212111133133313331323132322331333133313112211232323133   >>      C312322331333132212111133133313331323132322331333133313112211232323132   >>