C13223313311212111133133313331333133313232233133313112113321221   >>    C1322331331121211113313331333133313331323223313331311211332122   <<    C13223313311212111133133313331333133313232233133313112113321223   >>      C13223313311212111133133313331333133313232233133313112113321222   >>