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 collections import *

t, sx, sy, ex, ey = map(int, input().split())
s = input()
cnte = 0
cntw = 0
cntn = 0
cnts = 0
if sx == ex and sy == ey:
    print(0)
elif sx == ex:
    if ey > sy:
        diff = abs(ey - sy)
        for i in range(t):
            if s[i] == "N":
                cntn += 1
            if cntn == diff:
                print(i + 1)
                exit(0)
        print(-1)
    else:
        diff = abs(ey - sy)
        for i in range(t):
            if s[i] == "S":
                cntn += 1
            if cntn == diff:
                print(i + 1)
                exit(0)
        print(-1)
elif sy == ey:
    if ex > sx:
        diff = abs(ex - sx)
        for i in range(t):
            if s[i] == "E":
                cntn += 1
            if cntn == diff:
                print(i + 1)
                exit(0)
        print(-1)
    else:
        diff = abs(ex - sx)
        for i in range(t):
            if s[i] == "W":
                cntn += 1
            if cntn == diff:
                print(i + 1)
                exit(0)
        print(-1)
else:
    ex -= sx
    ey -= sy
    sx = 0
    sy = 0
    d = defaultdict(int)
    for i in range(t):
        d[s[i]] += 1
    if ex > 0 and ey > 0:
        cnte = ex
        cntn = ey
        if d["E"] < cnte or d["N"] < cntn:
            print(-1)
            exit(0)
        else:
            e = 0
            n = 0
            for i in range(t):
                if s[i] == "E":
                    e += 1
                if s[i] == "N":
                    n += 1
                if e == cnte and n == cntn:
                    print(i + 1)
                    exit(0)
    elif ex > 0 and ey < 0:
        cnte = ex
        cntn = abs(ey)
        if d["E"] < cnte or d["S"] < cntn:
            print(-1)
            exit(0)
        else:
            e = 0
            n = 0
            for i in range(t):
                if s[i] == "E":
                    e += 1
                if s[i] == "S":
                    n += 1
                if e == cnte and n == cntn:
                    print(i + 1)
                    exit(0)
    elif ex < 0 and ey > 0:
        cnte = abs(ex)
        cntn = ey
        if d["W"] < cnte or d["N"] < cntn:
            print(-1)
            exit(0)
        else:
            e = 0
            n = 0
            for i in range(t):
                if s[i] == "W":
                    e += 1
                if s[i] == "N":
                    n += 1
                if e == cnte and n == cntn:
                    print(i + 1)
                    exit(0)
    else:
        cnte = abs(ex)
        cntn = abs(ey)
        if d["W"] < cnte or d["S"] < cntn:
            print(-1)
            exit(0)
        else:
            e = 0
            n = 0
            for i in range(t):
                if s[i] == "W":
                    e += 1
                if s[i] == "S":
                    n += 1
                if e == cnte and n == cntn:
                    print(i + 1)
                    exit(0)