C11111333133313232233133313331333131133133311331322331323132313232321   >>    C1111133313331323223313331333133313113313331133132233132313231323232   <<    C11111333133313232233133313331333131133133311331322331323132313232323   >>      C11111333133313232233133313331333131133133311331322331323132313232322   >>