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).
def main() :
    t,sx,sy,ex,ey = map(int,input().split())
    string = input()
    test = True
    a = ex-sx
    b = ey-sy
    if a>0 :
        dir1 = 'E'
    elif a<0 :
        dir1 = 'W'
    else :
        dir1 = ""    
    if b>0 :
        dir2 = 'N'
    elif b<0 :
        dir2 = 'S'
    else:
        dir2 = ""    
    if dir1 != "" :
        ver1 = string.count(dir1)
        if ver1 < abs(a) :
            test = False
    if dir2 != "" :
        ver2 = string.count(dir2)
        if ver2 < abs(b) :
            test = False
    if test :
        i = 0
        c1,c2 = 0,0
        while c1<abs(a) or c2<abs(b) :
            if string[i] == dir1 and c1<abs(a) :
                c1+=1
                i+=1
                continue
            if string[i] == dir2 and c2<abs(b) :
                c2+=1
                i+=1
                continue                     
            i+=1
        print(i)
    else :
        print(-1)                


main()