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).
from sys import stdin,stdout
def move(dir,sx,sy):
    if dir=='E':
        sx+=1
    elif dir=='W':
        sx-=1
    elif dir=='N':
        sy+=1
    elif dir=='S':
        sy-=1
    return sx,sy

t,sx,sy,ex,ey=map(int,stdin.readline().split())
if sx==ex and sy==ey:
    stdout.write('0')
dir =[] 
if sx>ex:
    dir.append('W')
if sx<ex:
    dir.append('E')
if sy>ey:
    dir.append('S')
if sy<ey:
    dir.append('N')
winds =stdin.readline().strip()
seconds = 0

for d in winds:
    seconds+=1
    if d in dir:
        sx,sy=move(d,sx,sy)
    if sx==ex:
        if 'E' in dir:
            dir.remove('E')
        elif 'W' in dir:
            dir.remove('W')
    if sy==ey:
        if 'N' in dir:
            dir.remove('N')
        elif 'S' in dir:
            dir.remove('S')


    if sx==ex and sy==ey:
        break


if sx==ex and sy==ey:
    stdout.write(str(seconds))
else:
    stdout.write('-1')
    

