C333312111133133312111133133313331323221211111333133313232322331322331311212121   >>    C33331211113313331211113313331333132322121111133313331323232233132233131121212   <<    C333312111133133312111133133313331323221211111333133313232322331322331311212123   >>      C333312111133133312111133133313331323221211111333133313232322331322331311212122   >>