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 s1,s2,c1,c2;
    half_adder u0(a, b,s1, c1);
    half_adder u1(s1,cin,sum,c2);
    assign cout = c1 | c2;
    // Write code here


endmodule