N=int(input())
print("1","0.5","0")
xp,_,_=list(map(str,input().split()))
print("1","-0.5","0")
xm,_,_=list(map(str,input().split()))
ansx=0
if xp=="+" and xm=="+":
	ansx=0
elif xp=="-":
  ok=0
  ng=2*N+1
  while abs(ok-ng)>1:
    m=(ok+ng)//2
    print("1",m,0)
    k,_,_=list(map(str,input().split()))
    if k=="?" or k=="0":
      ok=m
      ng=m+1
      break
    if k=="-":
      ok=m
    else:
      ng=m
  ansx=ok
else:
  ng=-2*N-1
  ok=0
  while abs(ok-ng)>1:
    m=(ok+ng)//2
    print("1",m,0)
    k,_,_=list(map(str,input().split()))
    if k=="?" or k=="0":
      ok=m
      ng=m-1
      break
    if k=="-":
      ok=m
    else:
      ng=m
  ansx=ok

print("1","0","0.5")
yp,_,_=list(map(str,input().split()))
print("1","0","-0.5")
ym,_,_=list(map(str,input().split()))
ansy=0
if yp=="+" and ym=="+":
	ansy=0
elif yp=="-":
  ok=0
  ng=2*N+1
  while abs(ok-ng)>1:
    m=(ok+ng)//2
    print("1",0,m)
    k,_,_=list(map(str,input().split()))
    if k=="?" or k=="0":
      ok=m
      ng=m+1
      break
    if k=="-":
      ok=m
    else:
      ng=m
  ansy=ok
else:
  ng=-2*N-1
  ok=0
  while abs(ok-ng)>1:
    m=(ok+ng)//2
    print("1",0,m)
    k,_,_=list(map(str,input().split()))
    if k=="?" or k=="0":
      ok=m
      ng=m-1
      break
    if k=="-":
      ok=m
    else:
      ng=m
  ansy=ok    

print(2,ansx/2,ansy/2,(ansx**2+ansy**2)/4)