C11112331312111112111133133313331333133313122111133133313113313331322112131   >>    C1111233131211111211113313331333133313331312211113313331311331333132211213   <<    C11112331312111112111133133313331333133313122111133133313113313331322112133   >>      C11112331312111112111133133313331333133313122111133133313113313331322112132   >>