若将“c=a”改成“c=t”，则若输入3 6 9，输出()。

#include<iostream>

using namespace std;

int a, b, c;

int main() {

    cin >> a >> b >> c;

    int t = b;

    b = a, a = t;

    c = a;

    cout << a << " " << b << " " << c;

}