C11112331312111112111133133313231333132313232233133313112123131   >>    C1111233131211111211113313331323133313231323223313331311212313   <<    C11112331312111112111133133313231333132313232233133313112123133   >>      C11112331312111112111133133313231333132313232233133313112123132   >>