C11112331333132311331333132313331323132313232113313231333132231211   >>    C1111233133313231133133313231333132313231323211331323133313223121   <<    C11112331333132311331333132313331323132313232113313231333132231213   >>      C11112331333132311331333132313331323132313232113313231333132231212   >>