C11112331312111112111133133313231333132311212111133133313311221333132322112111   >>    C1111233131211111211113313331323133313231121211113313331331122133313232211211   <<    C11112331312111112111133133313231333132311212111133133313311221333132322112113   >>      C11112331312111112111133133313231333132311212111133133313311221333132322112112   >>