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,s1,s2,e1,e2 = map(int,input().split())
x = input()
e1 = e1-s1
e2 = e2-s2
f=v=0
l = abs(e1)+abs(e2)
if e1>0 and e2>0:
    #NE
    if x.count('N')>=e2 and x.count('E')>=e1:
        for i in x:
            if f>=l:break
            if i=='N' or i=='E':
                f+=1
            v+=1
        print(v)
    else:print(-1)
elif e1<0 and e2>0:
    #WN
    if x.count('N')>=abs(e2) and x.count('W')>=abs(e1):
        for i in x:
            if f==l:break
            if i=='N' or i=='W':
                f+=1
            v+=1
        print(v)
    else:print(-1)
elif e1<0 and e2<0:
    #WS
    if x.count('S')>=abs(e2) and x.count('W')>=abs(e1):
        for i in x:
            if f==l:break
            if i=='S' or i=='W':
                f+=1
            v+=1
        print(v)
    else:print(-1)
elif e1>0 and e2<0:
    #SE
    if x.count('S')>=abs(e2) and x.count('E')>=abs(e1):
        for i in x:
            if f==l:break
            if i=='N' or i=='E':
                f+=1
            v+=1
        print(v)
    else:print(-1)
else:
    print(-1)