Problem:
Score : 200 points

Problem Statement

In the beginning, Takahashi has A cookies, and Aoki has B cookies.
They will perform the following operation alternately, starting from Takahashi:

If the number of cookies in his hand is odd, eat one of those cookies; if the number is even, do nothing. Then, give one-half of the cookies in his hand to the other person.

Find the numbers of cookies Takahashi and Aoki respectively have after performing K operations in total.

Constraints

1 \leq A,B \leq 10^9

1 \leq K \leq 100

A,B and K are integers.

Input

Input is given from Standard Input in the following format:

A B K

Output

Print the number of cookies Takahashi has, and the number of cookies Aoki has, in this order, after performing K operations in total.

Sample Input 1

5 4 2

Sample Output 1

5 3

The process will go as follows:

In the beginning, Takahashi and Aoki have 5 and 4 cookies, respectively.

Takahashi eats one cookie and gives two cookies to Aoki. They now have 2 and 6 cookies, respectively.

Aoki gives three cookies to Takahashi. They now have 5 and 3 cookies, respectively.

Sample Input 2

3 3 3

Sample Output 2

1 3

Sample Input 3

314159265 358979323 84

Sample Output 3

448759046 224379523

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;

namespace atcorder
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            atcorder.Exchange.Run();
        }
    }
    public class Exchange
    {
        public Exchange()
        {
        }
        public static void Run(){
            int A, B, K;
            string s = Console.ReadLine();
            A = int.Parse(s.Split(' ')[0]);
            B = int.Parse(s.Split(' ')[1]);
            K = int.Parse(s.Split(' ')[2]);
            for (int i = 0; i < K;i++){
                if (i % 2 == 0)
                {
                    //
                    if (A % 2 == 1) A--;
                    B += A / 2;
                    A /= 2;
                }
                else
                {                //
                    if (B % 2 == 1) B--;
                    A += B / 2;
                    B /= 2;
                }

            }
            Console.WriteLine("{0} {1}", A, B);
        }
    }
}