C111123313121111121111331333132313331333133313231333131133122321312323221   >>    C11112331312111112111133133313231333133313331323133313113312232131232322   <<    C111123313121111121111331333132313331333133313231333131133122321312323223   >>      C111123313121111121111331333132313331333133313231333131133122321312323222   >>