C11112331312111112111133133313331333132313233313331312111133133313331121322311   >>    C1111233131211111211113313331333133313231323331333131211113313331333112132231   <<    C11112331312111112111133133313331333132313233313331312111133133313331121322313   >>      C11112331312111112111133133313331333132313233313331312111133133313331121322312   >>