C1111133313331323223313331333133313331323133313331331121133133322233211221   >>    C111113331333132322331333133313331333132313331333133112113313332223321122   <<    C1111133313331323223313331333133313331323133313331331121133133322233211223   >>      C1111133313331323223313331333133313331323133313331331121133133322233211222   >>