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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>
#include <string>
#include <vector>
#include<algorithm>
#include<sstream>
using namespace std;

// Aは自分のクッキーの枚数
// Bは相手のクッキーの枚数
void cookie(int& A, int& B) {
	int give = A / 2;
	if (A % 2 == 1) A--;
	A -= give;
	B += give;
}

int main() {
	int A, B, K;
	cin >> A >> B >> K;
	
	if (K % 2 == 1) { // Kが奇数なら
		for (int i = 0; i < K / 2; i++) {
			cookie(A, B);
			cookie(B, A);
		}
		cookie(A, B); // 最後にもう一回
	}
	else {
		for (int i = 0; i < K / 2; i++) {
			cookie(A, B);
			cookie(B, A);
		}
	}

	cout << A << " " << B << endl;

	return 0;
}