fn main() {
    let lowerx = 0isize;
    let upperx = 1e9 as isize;
    let tempy = 0isize;
    let lowery = 0isize;
    let uppery = 1e9 as isize;

    println!("{} {}", lowerx, tempy);
    let mut dist0 = String::new();
    std::io::stdin().read_line(&mut dist0).ok();
    let dist0: isize = dist0.trim().parse().unwrap();
    if dist0 == 0 {
        return;
    }
    println!("{} {}", upperx, tempy);
    let mut dist1 = String::new();
    std::io::stdin().read_line(&mut dist1).ok();
    let dist1: isize = dist1.trim().parse().unwrap();
    if dist1 == 0 {
        return;
    }
    let diffx = dist0.max(dist1) - dist0.min(dist1);
    let diffx = diffx / 2;
    let x = (lowerx + upperx) / 2 + if dist0 > dist1 { diffx } else { -diffx };

    println!("{} {}", x, lowery);
    let mut dist0 = String::new();
    std::io::stdin().read_line(&mut dist0).ok();
    let dist0: isize = dist0.trim().parse().unwrap();
    if dist0 == 0 {
        return;
    }
    println!("{} {}", x, uppery);
    let mut dist1 = String::new();
    std::io::stdin().read_line(&mut dist1).ok();
    let dist1: isize = dist1.trim().parse().unwrap();
    if dist1 == 0 {
        return;
    }
    let diffy = dist0.max(dist1) - dist0.min(dist1);
    let diffy = diffy / 2;
    let y = (lowery + uppery) / 2 + if dist0 > dist1 { diffy } else { -diffy };
    println!("{} {}", x, y);
}