I,R,O=input,range,print
N=int(I())
def b(n,s):
	n%=s*8
	return[[s,n],[s*2-n,s],[-s,s*4-n],[-s*6+n,-s]][(n+s)//(s*2)%4]
#ジャッジの動作確認VVV
O(1,"-1000000000.000000000","-1000000000.000000000")
P,*u=I().split()
#ジャッジの動作確認AAA
P="+"
def q():
	global P;O(1,x,y,flush=1);P,*u=I().split()
a=0
while P<"-":
	a+=2;x,y=b(a,1);q()
l,r=0,N*2
while l+1<r:
	m=(l+r)>>1;x,y=b(a*m,m);q()
	if P=="-":l=m
	else:r=m
d,e=b(a+2,1)
t,u=0,0
def j():
	global x,y;x,y=b(a*c,c);x+=d*s*m;y+=e*s*m;q()
	return"-"==P
for c in R(-1+max(4,r-1)>>1,(r+3)>>1):
	f,g=0,0
	for s in R(-1,3,2):
		l,r=0,N*2
		while l+1<r:
			m=(l+r)>>1
			if j():l=m
			else:r=m
		x,y=b(a*c,c);f+=x+d*s*r;g+=y+e*s*r
	for x in R(f-1,f+2):
		for y in R(g-1,g+2):
			q()
			if P>"-"and t*t+u*u<x*x+y*y:t,u=x,y
O(2,t/2,u/2,(t*t+u*u)/4)