#include <cstdio>
#include <algorithm>

int main() {
  double l, r;
  double pd = 0;
  while (scanf("%lf%lf", &l, &r) == 2) {
    if (l < -0.5) break;
    double d = r - l;
    double ctl = d * 2 + (d - pd) * 5;  // PD controller
    pd = d;

    double ml = std::max(0.0, std::min(1.0, 1 - ctl));
    double mr = std::max(0.0, std::min(1.0, 1 + ctl));
    printf("%.4lf %.4lf\n", ml, mr);
    fflush(stdout);
  }
  return 0;
}