#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
    double v[15];

    while (true) {
        bool all_zero = true;
        for (int i = 0; i < 12; i++) {
            scanf (" %lf", &v[i]);
            if (v[i] != 0.0)
                all_zero = false;
        }

        if (all_zero)
            break;

        double l1, l2, l3;
        double area1, area2, r;
        double xh, yh, xg, yg;

        area1 = ((v[1]*v[4 ] + v[0]*v[3] + v[2]*v[5 ]) - (v[1]*v[2] + v[3]*v[4 ] + v[5 ]*v[0]))/2;
        area2 = ((v[7]*v[10] + v[6]*v[9] + v[8]*v[11]) - (v[7]*v[8] + v[9]*v[10] + v[11]*v[6]))/2;

        if (area1 < 0) area1 *= -1;
        if (area2 < 0) area2 *= -1;

        r = area2/(2*area1);

        xh = v[4]*r + (1-r)*v[0];
        yh = v[5]*r + (1-r)*v[1];
        xg = xh - v[0] + v[2];
        yg = yh - v[1] + v[3];

        printf("%.3lf %.3lf %.3lf %.3lf\n", xg, yg, xh, yh);
    }

    return 0;
}