include include

void transformArray(std::vector& arr) {
int firstElement = arr.front();
int lastElement = arr.back();

for (int i = 1; i < arr.size() - 1; i++) {
if (arr[i] % 2 == 0) {
arr[i] += firstElement;
} else {
arr[i] += lastElement;
}
}

}

int main() {
int N;
std::cout << "Enter the size of the array: ";
std::cin >> N;

std::vector<int> arr(N);
std::cout << "Enter the elements of the array: ";
for (int i = 0; i < N; i++) {
std::cin >> arr[i];
}
transformArray(arr);
std::cout << "Transformed array: ";
for (int num : arr) {
std::cout << num << " ";
}
return 0;

}