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).
f_line = input().split()

t = int(f_line[0])
sx = int(f_line[1])
sy = int(f_line[2])
ex = int(f_line[3])
ey = int(f_line[4])

dx = ex-sx
dy = ey-sy

tx = 0
ty = 0

dir_lst = list(input())
min_time = 0

for i in dir_lst:
    if dx == tx and dy == ty:
        break
    else:
        min_time += 1
        if i == 'E':
            if dx <= 0:
                continue
            else:
                tx += 1
        elif i == 'S':
            if dy >= 0:
                continue
            else:
                ty -= 1
        elif i == 'W':
            if dx >= 0:
                continue
            else:
                tx -= 1
        elif i == 'N':
            if dy <= 0:
                continue
            else:
                ty += 1
if dx == 0 and dy == 0:
    print(0)
elif dx != tx or dy != ty:
    print(-1)
else:
    print(min_time)