Distance To Special Point

This is an interactive problem

On the plane the integer points with coordinates does not exceeding $10^6$ are labeled. The movement is allowed along the lines that are parallel to the coordinate axis, so the distance between two points that have coordinates $x_1,y_1$ and $x_2,y_2$ is calculated as $|x_1-x_2|+|y_1-y_2|$.

There is unknown special labeled point $A$. You may for one query ask the distance from the labeled point you choose to the point $A$. Your task is to guess the coordinates of $A$ for two queries.

Interaction Protocol The interaction is started by your program. You may ask the queries in the format $"?xy"$ — ask the distance (in definitions of the task) from the labeled point with coordinates $x,y$ to the point $A(-10^6\le x,y\le 10^6,x$ and $y$ are integers).

If you are ready to print the answer, use the following format: $"!xy"(x$ and $y$ are the coordinates of the point $A$, then exit the program. This action is not considered as a query.

Note For the correct interaction print the end-of-line after each query and after the answer and flush the output buffer with the respective functions of your programming language:

• cout.flush() or fflush(stdout) for C/C++;

• stdout.flush() for Python;

• look your language documentation for the other languages.

Examples