-- Try yukicoder
-- author: Leonardone @ NEETSDKASU

import System.IO

main = do
    let maxlen = 1000000000
    putStrLn "0 0"
    hFlush stdout
    len0 <- read <$> getLine
    if len0 == 0 then return ()
    else do
        putStrLn $ "0 " ++ show maxlen
        hFlush stdout
        len1 <- read <$> getLine
        if len1 == 0 then return ()
        else do
            let x = (len0 + len1 - maxlen) `div` 2
            let y = len0 - x
            putStrLn $ show x ++ " " ++ show y
            hFlush stdout
            getLine
            return ()