C111123313121111121111331333133313331333131233133313221232313231131   >>    C11112331312111112111133133313331333133313123313331322123231323113   <<    C111123313121111121111331333133313331333131233133313221232313231133   >>      C111123313121111121111331333133313331333131233133313221232313231132   >>