C11112331333132311331333132313331323132313232233132313331322312111   >>    C1111233133313231133133313231333132313231323223313231333132231211   <<    C11112331333132311331333132313331323132313232233132313331322312113   >>      C11112331333132311331333132313331323132313232233132313331322312112   >>