The polar bears are going fishing. They plan to sail from (*s*<sub class="lower-index">*x*</sub>, *s*<sub class="lower-index">*y*</sub>) to (*e*<sub class="lower-index">*x*</sub>, *e*<sub class="lower-index">*y*</sub>). However, the boat can only sail by wind. At each second, the wind blows in one of these directions: east, south, west or north. Assume the boat is currently at (*x*, *y*).
 -  If the wind blows to the east, the boat will move to (*x* + 1, *y*). -  If the wind blows to the south, the boat will move to (*x*, *y* - 1). -  If the wind blows to the west, the boat will move to (*x* - 1, *y*). -  If the wind blows to the north, the boat will move to (*x*, *y* + 1). 
Alternatively, they can hold the boat by the anchor. In this case, the boat stays at (*x*, *y*). Given the wind direction for *t* seconds, what is the earliest time they sail to (*e*<sub class="lower-index">*x*</sub>, *e*<sub class="lower-index">*y*</sub>)?
The first line contains five integers *t*, *s*<sub class="lower-index">*x*</sub>, *s*<sub class="lower-index">*y*</sub>, *e*<sub class="lower-index">*x*</sub>, *e*<sub class="lower-index">*y*</sub> (1 ≤ *t* ≤ 10<sup class="upper-index">5</sup>,  - 10<sup class="upper-index">9</sup> ≤ *s*<sub class="lower-index">*x*</sub>, *s*<sub class="lower-index">*y*</sub>, *e*<sub class="lower-index">*x*</sub>, *e*<sub class="lower-index">*y*</sub> ≤ 10<sup class="upper-index">9</sup>). The starting location and the ending location will be different.

The second line contains *t* characters, the *i*-th character is the wind blowing direction at the *i*-th second. It will be one of the four possibilities: "E" (east), "S" (south), "W" (west) and "N" (north).
t,sx,sy,ex,ey=map(int,input().split())
st=input()
s=0
e=0
w=0
n=0

for i in range(len(st)):
	if st[i]=="N":
		n+=1
	elif st[i]=="S":
		s+=1
	elif st[i]=="W":
		w+=1
	else:
		e+=1

x=ex-sx
y=ey-sy
east=0
west=0
north=0
south=0


if x<0:
	west+=(abs(sx-ex))
elif x>0:
	east+=(abs(sx-ex))

if y>0:
	north+=(abs(ey-sy))
elif y<0:
	south+=(abs(ey-sy))



time1=0
time2=0

if east and e>=east:
	for i in range(t):
		if east==0:
			time1=i
			break
		if st[i]=="E":
			east-=1
elif west and w>=west:
	for i in range(t):
		if west==0:
			time1=i
			break
		if st[i]=="W":
			west-=1

if north and n>=north:
	for i in range(t):
		if north==0:
			time2=i
			break
		if st[i]=="N":
			north-=1
elif south and s>=south:
	for i in range(t):
		if south==0:
			time2=i
			break
		if st[i]=="S":
			south-=1
if east!=0 or west!=0 or south!=0 or north!=0:
	print(-1)

elif time1+time2==0:
	print(-1)
else:
	print(max(time1,time2))