# include <iostream>
using namespace std;
int main(void)
{
int a, b, c, d, e, f;
cin >> f;
while(f--){
cin >> a >> b >> c >> d;
if (b-a == c-b){
e = d + (b-a);
cout << a << " " << b << " " << c << " " << d << " " << e <<endl;
}
if (b/a == c/b){
e = d*(b/a);
cout << a << " " << b << " " << c << " " << d << " " << e <<endl;
}
}
return 0;
}
我的答案:1 1 1 1 1
標準答案:2 4 6 8 10
請問為甚麼?