C312322331333132212111133133313331323132322331333133313111121132311   >>    C31232233133313221211113313331333132313232233133313331311112113231   <<    C312322331333132212111133133313331323132322331333133313111121132313   >>      C312322331333132212111133133313331323132322331333133313111121132312   >>