C1111233131211111211113313331333133313331322322331323231323131231   >>    C111123313121111121111331333133313331333132232233132323132313123   <<    C1111233131211111211113313331333133313331322322331323231323131233   >>      C1111233131211111211113313331333133313331322322331323231323131232   >>