C11112331312111112111133133313231333132311212111133133313311221333132332231   >>    C1111233131211111211113313331323133313231121211113313331331122133313233223   <<    C11112331312111112111133133313231333132311212111133133313311221333132332233   >>      C11112331312111112111133133313231333132311212111133133313311221333132332232   >>