C111123313121111121111331333133313331323232133313331333133313112112131122213131   >>    C11112331312111112111133133313331333132323213331333133313331311211213112221313   <<    C111123313121111121111331333133313331323232133313331333133313112112131122213133   >>      C111123313121111121111331333133313331323232133313331333133313112112131122213132   >>