64. Full Adder

How do you plan to solve it?

// Half Adder primitive
module half_adder (
    input  a, b,
    output sum, carry
);
    // Write code here
    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
);
    wire sum01, carry01, carry02;
    // Write code here
    half_adder ha01 (
        .a(a),
        .b(b),
        .sum(sum01),
        .carry(carry01)
    );

    half_adder ha02 (
        .a(sum01),
        .b(cin),
        .sum(sum),
        .carry(carry02)
    );

    assign cout = carry02 | carry01;


endmodule