C1111233131211111211113313331333133313331322322331323131121333311   >>    C111123313121111121111331333133313331333132232233132313112133331   <<    C1111233131211111211113313331333133313331322322331323131121333313   >>      C1111233131211111211113313331333133313331322322331323131121333312   >>