#include <iostream>
using namespace std;

int main() {
    int a[6] = {1, 2, 3, 4, 5, 6};
    int pi = 0;
    int pj = 5;
    int t , i;
    while (pi < pj) {
        t = a[pi];
        a[pi] = a[pj];
        a[pj] = t;
        pi++;
        pj--;
    }
    for (i = 0; i < 6; i++)
        cout << a[i] << ",";
    cout << endl;
    return 0;
}

请填写答案。

{{ input(1) }}