C11112331333132311331333132313331323133313132313231323132313231322321111   >>    C1111233133313231133133313231333132313331313231323132313231323132232111   <<    C11112331333132311331333132313331323133313132313231323132313231322321113   >>      C11112331333132311331333132313331323133313132313231323132313231322321112   >>