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).
n,sx,sy,ex,ey=list(map(int,input().split()))
r=input()
a,b=sx-ex,sy-ey
flag1,flag2,flag3,flag4=0,0,0,0
if a==0: flag1=1
if b==0:flag2=1
if a>0:flag3=1
if b>0 :flag4=1
i=0
if flag1 and flag2:
    print(0)
elif flag1 and flag4:

    while i<n and b!=0:
        if r[i]=="S":
            b-=1
        i+=1
elif flag1 and not flag4:
    while i<n and b!=0:
        if r[i]=="N":
            b+=1
        i+=1
elif flag2 and flag3:
    while i<n and a!=0:
        if r[i]=="W":
            a-=1
        i+=1
elif flag2 and not flag3:
    while i<n and a!=0:
        if r[i]=="E":
            a+=1
        i+=1
elif flag3 and flag4:
    while i<n and a+b!=0:
        if a>0 and r[i]=="W":
            a-=1
        elif b>0 and r[i]=="S":
            b-=1
        i+=1
elif flag3 and not flag4:
    while i<n and a>-1 and b<1:
        if a>0 and r[i]=="W":
            a-=1
        elif b<0 and r[i]=="N":
            b-=1
        i+=1
elif flag4 and not flag3:
    while i<n and a<1 and b>-1:
        if a<1 and r[i]=="E":
            a+=1
        elif b>0 and r[i]=="S":
            b-=1
        i+=1
else:
    while i<n and a+b!=0:
        if a<0 and r[i]=="E":
            a+=1
        elif b<0 and r[i]=="N":
            b+=1
        i+=1
if a+b!=0:
    print(-1)
else:
    print(i)