C11112331312111112111133133313231333132313331333112331322333222311   >>    C1111233131211111211113313331323133313231333133311233132233322231   <<    C11112331312111112111133133313231333132313331333112331322333222313   >>      C11112331312111112111133133313231333132313331333112331322333222312   >>