#include <iostream>
#include<string.h>
#include<stdio.h>
using namespace std;
 
int main() {
	// your code goes here
		int x=1000,y=1000,l=1,u=1000,yupper,ylower,ans=0;
	char a[10];
 
	while((l+1)!=u)
	{
	    cout<<"? "<<0<<' '<<y<<endl;
	    fflush(stdout);
	    cin>>a;
	    if(!strcmp(a,"YES"))
	    {
	        l=y;
	    }
	    else
	    u=y;
	    y=(u+l)/2;
	    }
	    yupper=l;
	   // cout<<yupper;
	    l=1;u=1000;
	  	while((l+1)!=u)
     	{
	    cout<<"? "<<x<<' '<<0<<endl;
	    fflush(stdout);
	    cin>>a;
	    if(!strcmp(a,"YES"))
	    {
	        l=x;
	    }
	    else
	    u=x;
	    x=(u+l)/2;
	    }
	    x=l;
	    u=yupper;
	    l=1;
	    y=yupper;
	    while((l+1)!=u)
	{
	    cout<<"? "<<0<<' '<<y<<endl;
	    fflush(stdout);
	    cin>>a;
	    if(!strcmp(a,"YES"))
	    {
	        u=y;
	    }
	    else
	    l=y;
	    y=(u+l)/2;
	    }
	    ylower=l;
	    //cout<<endl<<yupper<<endl<<ylower<<endl<<x<<endl;
	    ans=(yupper-ylower)*x+(ylower*ylower);
	    cout<<"! "<<ans<<endl;
 
	return 0;
}

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

Tk8gTk8gWUVTIFlFUyBOTyBZRVMgWUVTIFlFUyBOTyBZRVMgWUVTIE5PIE5PIFlFUyBZRVMgTk8gWUVTIFlFUyBZRVMgTk8gWUVTIFlFUyBZRVMgWUVTIFlFUyBZRVMgWUVTIFlFUyBZRVMgWUVTIE5PIE5PCg==

NO NO YES YES NO YES YES YES NO YES YES NO NO YES YES NO YES YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO