C11223331333132322331333133313133313231323132333112211231211111   >>    C1122333133313232233133313331313331323132313233311221123121111   <<    C11223331333132322331333133313133313231323132333112211231211113   >>      C11223331333132322331333133313133313231323132333112211231211112   >>