C11112331312111112111133133313331333132311211331323133313231322111   >>    C1111233131211111211113313331333133313231121133132313331323132211   <<    C11112331312111112111133133313331333132311211331323133313231322113   >>      C11112331312111112111133133313331333132311211331323133313231322112   >>