1#include <stdio.h>
2int main() {
3    int arr[3] = {1, 2, 3};
4    int temp = arr[0];
5    arr[0] = arr[2];
6    arr[2] = temp;
7    printf("%d %d %d\n", arr[0], arr[1], arr[2]);
8    return 0;
9}