import std.algorithm, std.conv, std.range, std.stdio, std.string;

const ma = 1000000000;

void main()
{
  auto ans = int.max;
  auto xi = 0, xa = ma;
  auto yi = 0, ya = ma;
  auto ri = 0, ra = 0;

  writeln(xi, " ", yi); stdout.flush();
  ri = readln.chomp.to!int;
  if (ri == 0)
    return;

  writeln(xa, " ", yi); stdout.flush();
  ra = readln.chomp.to!int;
  if (ra == 0)
    return;

  auto x = (ma - (ra - ri)) / 2;

  writeln(x, " ", yi); stdout.flush();
  ri = readln.chomp.to!int;
  if (ri == 0)
    return;

  writeln(x, " ", ya); stdout.flush();
  ra = readln.chomp.to!int;
  if (ra == 0)
    return;

  auto y = (ma - (ra - ri)) / 2;
  writeln(x, " ", y); stdout.flush();
  readln.chomp.to!int;
}