#include <iostream>

using namespace std;

int main() {

    int count = 5;

    int i, j, pass = 0;
    double temp;
    bool done = false;
    int lastIndex = 0;

    int arr[5] = {2,3,4,5,6};

      while (!done) {
            lastIndex = 0;
            for (int i = 0; i < count - 1; i++) {
                  if (arr[i] % 2 != 0 && arr[i + 1] % 2 == 0) {
                        temp = arr[i + 1];
                        arr[i + 1] = arr[i];
                        arr[i] = temp;
                        break;
                  } else {
                        lastIndex++;
                  }

                  if (lastIndex == count - 1) {
                        done = true;
                  }
            }
      }

      for (int x = 0; x < count; x++) {
            cout << arr[x] << ", ";
      }

      return 0;
}