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).
t,sx,sy,ex,ey=map(int,input().split())

import math
def dist(x1,y1,x2,y2):
    ans= math.sqrt((x2-x1)**2 + (y2-y1)**2)
    return (ans)


x=input()
c=1
i=0
while (dist(sx,sy,ex,ey) != 0 and i<len(x)):
    if x[i]=="S":
        if (dist(sx,sy,ex,ey)>dist(sx,sy-1,ex,ey)):
            sy-=1
            c+=1
            i+=1
        else:
            c+=1
            i+=1
            continue   
    elif x[i]=="N":
        if (dist(sx,sy,ex,ey)>dist(sx,sy+1,ex,ey)):
            sy+=1
            c+=1
            i+=1
        else:
            c+=1
            i+=1
            continue
    elif x[i]=="E":
        if (dist(sx,sy,ex,ey)>dist(sx+1,sy,ex,ey)):
            sx+=1
            c+=1
            i+=1
        else:
            c+=1
            i+=1
            continue
    elif x[i]=="W":
        if (dist(sx,sy,ex,ey)>dist(sx-1,sy,ex,ey)):
            sx-=1
            c+=1
            i+=1
        else:
            c+=1
            i+=1
            continue
if (c-1>=t):
    print (-1)
else:
    print (c-1)
