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()))
t = L[0]
sx = L[1]
sy = L[2]
ex = L[3]
ey = L[4]
s = str(input())

countX = 0
# print(t,sx,sy,ex,ey,s)
if sx < ex: #head east as x = x+1
    xhead = 'E'
    countX += ( ex - sx )
else:
    xhead = 'W'
    countX += (sx - ex )

countY = 0

if sy < ey:
    yhead = 'N'
    countY += ( ey - sy )
else:
    yhead = 'S'
    countY += ( sy - ey )

# print(xhead,yhead)

for i in range(len(s)+1):

    if countX <= 0 and countY <= 0:
        break

    if s[i] == xhead:
        countX -= 1
    if s[i] == yhead:
        countY -= 1
    
    
# print(countX,countY)

if countX <= 0 and countY <= 0:
    print(i)
else:
    print(-1)