64. Full Adder

How do you plan to solve it?

// Half Adder primitive
module half_adder (
    input  a, b,
    output sum, carry
);
   xor (sum,a,b);
   and(carry,a,b);// Write code here
    
endmodule

// Full Adder using 2 Half Adders
module full_adder_struct (
    input  a, b, cin,
    output sum, cout
);
    // Write code here
    wire w1,w2,w3;
   half_adder ha1 (a,b,w1,w2);
   half_adder ha2 (w1,cin,sum,w3);
   or (cout,w2,w3);


endmodule