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
    half_adder ha1( .a(a), .b(b), .sum(sum1), .carry(carry1));
    half_adder ha2( .a(sum1), .b(cin), .sum(sum), .carry(carry2));
    assign cout=carry1|carry2;



endmodule