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,a,b,c,d = map(int,input().split())
s=str(input())

s=[p for p in s]

x=c-a
y=d-b
# print(x,y)

if abs(c-a)+abs(d-b)>t:
	print("-1")
	exit()

if x<0:
	X="W"
if x>=0:
	X="E"
if y<0:
	Y="S"
if y>=0:
	Y="N"
x=abs(x)
y=abs(y)
# print(x,y)
# print(X,Y)

p=0
q=0
v=0
cntx=0
cnty=0
for i in range(len(s)):
	if s[i]==X:
		cntx+=1
		#print("t")
		if cntx==x:
			p=i
			break
	
			
		

for i in range(len(s)):
	if s[i]==Y:
		cnty+=1
		if cnty==y:
			q=i
			break
		
			
		



# print(p,q)
		
if cntx<x or cnty<y:
	print("-1")

else:
	print(max(p+1,q+1))





