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
);
    // Write code here
    wire s, c0, c1;
    half_adder h1(.a(a), .b(b), .sum(s), .carry(c0));
    half_adder h2(.a(s), .b(cin), .sum(sum), .carry(c1));
    assign cout = c0|c1;


endmodule