C11111333133313232233133313331333133313223313331323132233133331312321   >>    C1111133313331323223313331333133313331322331333132313223313333131232   <<    C11111333133313232233133313331333133313223313331323132233133331312323   >>      C11111333133313232233133313331333133313223313331323132233133331312322   >>