64. Full Adder

How do you plan to solve it?

// Half Adder primitive
module half_adder (
    input  a, b,
    output sum, carry
);
    assign sum = a ^ b;
    assign carry = a & b;
    
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 u1(.a(a), .b(b), .sum(w1), .carry (w2));
    half_adder u2 (.a(w1),.b(cin), .sum (sum),.carry(w3));
    assign cout = w3 | w2;


endmodule