#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
   int n,k,x,xmin,xmax;
   char s[100]={'0'};
   scanf("%d%d",&n,&k);
   xmin=1;
   xmax=n;
   x=(xmin+xmax)/2;
   if(k==1)x=1;
   while(strcmp(s,"exit")!=0)
   {
       printf("query %d\n",x);
       fflush(stdout);
       scanf("%s",s);
       if(k>1){
       if(strcmp(s,"broke")==0)
        {
            k--;
            if(k==1)
            {
                x=xmin;
                continue;
            }
            else xmax=x;
        }
        else if(strcmp(s,"survived")==0)
            {
                xmin=x+1;
            }
        else if(strcmp(s,"error")==0) strcpy(s,"exit");
        if(xmin==xmax)
            {
                    printf("answer %d\n",xmax);
                    fflush(stdout);
                    scanf("%s",s);
            }
        else
            { if(k!=1)
                 x=(xmin+xmax)/2;
            }
       }
       else
       {
           if(strcmp(s,"broke")==0)
           {
               printf("answer %d\n",x);
                    fflush(stdout);
                    scanf("%s",s);
           }
           else x++;
       }
   }

   return(0);

}