73. SR Latch

How do you plan to solve it?

module sr_latch_nor (
    input  S,
    input  R,
    output reg Q,
    output reg Qn
);
    // Write your code here
    always @(S or R)
        case ({S, R})
            2'b00: begin 
                    Q <= Q; 
                    Qn <= Qn;
                    end        
            2'b01: begin 
                    Q <= 0; 
                    Qn <= 1;
                    end
            2'b10: begin 
                    Q <= 1; 
                    Qn <= 0;
                    end
          2'b11: begin 
                    Q <= 0; 
                    Qn <= 1;
                    end       
        endcase     
endmodule