#include<stdio.h>
#include <vector>
#include <string.h>
#include<iostream>
#include<cmath>
#include <algorithm>
#include <queue>
using namespace std;
const double pi=acos(-1);//pi就是π是180°
int main()
{
int t;
double x1,x2,x3,y1,y2,y3,l,at;
scanf("%d",&t);
while(t--)
{
scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2);
at = atan2(y2-y1,x2-x1);
l = sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
x3 = x1+l*cos(at+pi/3.0);
y3 = y1+l*sin(at+pi/3.0);
printf("(%.2lf,%.2lf)\n",x3,y3);
}
return 0;
}
