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,x,y,a,b=map(int,input().split())
S=input()
n,s,e,w=0,0,0,0
if(x<=a):e=a-x
else: w=x-a
if(y<=b):n=b-y
else: s=y-b
# print(n,s,e,w)
i=0
ans=0
while((n>0 or w>0 or e>0 or s>0) and i<t):
    # print(S[i])
    if(S[i]=="N" and n>0):
        n-=1
    elif(S[i]=="S" and s>0):
        s-=1
    elif(S[i]=="E" and e>0):
        e-=1
    elif(S[i]=="W" and w>0):
        w-=1
    ans+=1 
    if(n==0 and s==0 and e==0 and w==0): break
    i+=1    
# print(n,s,e,w)    
if(n==0 and s==0 and e==0 and w==0): print(ans)
else: print(-1)