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

void main()
{
  auto ans = int.max;
  auto xi = 0, xa = 10;
  auto yi = 0, ya = 10;
  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 = 0;
  if (ri < ra) {
    x = (xa - (ra - ri)) / 2;
  } else if (ri > ra) {
    x = (xi + (ri - ra)) / 2;
  } else {
    x = (xa + xi) / 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 = 0;
  if (ri < ra) {
    y = (ya - (ra - ri)) / 2;
   } else if (ri > ra) {
    y = (yi + (ri - ra)) / 2;
  } else {
    y = (ya + yi) / 2;
  }
  writeln(x, " ", y); stdout.flush();
}