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);
    // Write code here
    
endmodule

// Full Adder using 2 Half Adders
module full_adder_struct (
    input  a, b, cin,
    output sum, cout
);
    wire sum1, carry1;
    wire sum2, carry2;
    half_adder h1 (a,b, sum1, carry1);
    half_adder h2 (sum1, cin, sum2, carry2);

    assign sum = sum2;
    assign cout = (carry1 | carry2); 
    // Write code here


endmodule