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).
l = list(map(int, input().split()))
s = input()
c = 0
n = l[0]
sx = l[1]
sy = l[2]
ex = l[3]
ey = l[4]
dx = ex - sx
dy = ey - sy
i = 0
while i < n:
    if s[i] == 'E':
        if ex - (sx+1) < dx:
            dx = ex - (sx+1)
            sx += 1
    elif s[i] == 'S':
        if ey - (sy-1) < dy:
            dy = ey - (sy-1)
            sy -= 1
    elif s[i] == 'N':
        if ey - (sy+1) < dy:
            dy = ey - (sy+1)
            sy += 1
    elif s[i] == 'W':
        if ex - (sx-1) < dx:
            dx = ex - (sx-1)
            sx -= 1

    c += 1

    if sy == ey and sx == ex:
        print(c)
        break
    
    i += 1

else:
    print(-1)
