10/13 Add_full

module Add_full(sum,c_out,a,b,c_in);

input a,b,c_in;
output sum_c_out;
wire w1,w2,w3;

Add_half M1(w1,w2,a,b);
Add_half M2(sum,w3,w1,c_in);
or (c_out,w2,w3);

endmodule