C111123313121111121111331333133313331333131221111113313231333132233222311   >>    C11112331312111112111133133313331333133313122111111331323133313223322231   <<    C111123313121111121111331333133313331333131221111113313231333132233222313   >>      C111123313121111121111331333133313331333131221111113313231333132233222312   >>