/**
 * Computes the sum of three bits.
 */

`default_nettype none
module FullAdder(
    input a,        //1-bit input
    input b,        //1-bit input
    input c,        //1-bit input
    output sum,     //Right bit of a + b + c
    output carry    //Left bit of a + b + c
);

    // Put your code here:
    wire sumi;
    wire carryi;
    wire carryj;

    HalfAdder HA1(a, b, sumi, carryi);
    HalfAdder HA2(c, sumi, sum, carryj);
    Or OR(carryi, carryj, carry);
endmodule