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).
time, x1, y1, x2, y2 = map(int, input().split())
word = input()
nor_sou = y2 - y1
ea_we = x2 - x1
if nor_sou > 0 and ea_we > 0:
    for spend, val in enumerate(word):
        if val == 'N':
            nor_sou -= 1
        elif val == 'E':
            ea_we -= 1
        if nor_sou == 0 and ea_we == 0:
            break
    else:
        print(-1)
        exit()
elif nor_sou > 0 > ea_we:
    ea_we = abs(ea_we)
    for spend, val in enumerate(word):
        if val == 'N':
            nor_sou -= 1
        elif val == 'W':
            ea_we -= 1
        if nor_sou == 0 and ea_we == 0:
            break
    else:
        print(-1)
        exit()
elif ea_we > 0 > nor_sou:
    nor_sou = abs(nor_sou)
    for spend, val in enumerate(word):
        if val == 'S':
            nor_sou -= 1
        elif val == 'E':
            ea_we -= 1
        if nor_sou == 0 and ea_we == 0:
            break
    else:
        print(-1)
        exit()
elif ea_we < 0 and nor_sou < 0:
    ea_we = abs(ea_we)
    nor_sou = abs(nor_sou)
    for spend, val in enumerate(word):
        if val == 'S':
            nor_sou -= 1
        elif val == 'W':
            ea_we -= 1
        if nor_sou == 0 and ea_we == 0:
            break
    else:
        print(-1)
        exit()
elif ea_we == 0:
    if nor_sou > 0:
        for spend, val in enumerate(word):
            if val == 'N':
                nor_sou -= 1
            if nor_sou == 0:
                break
        else:
            print(-1)
            exit()
    else:
        for spend, val in enumerate(word):
            nor_sou = abs(nor_sou)
            if val == 'S':
                nor_sou -= 1
            if nor_sou == 0:
                break
        else:
            print(-1)
            exit()
elif nor_sou == 0:
    if ea_we > 0:
        for spend, val in enumerate(word):
            if val == 'E':
                ea_we -= 1
            if ea_we == 0:
                break
        else:
            print(-1)
            exit()
    else:
        ea_we = abs(ea_we)
        for spend, val in enumerate(word):
            if val == 'E':
                ea_we -= 1
            if ea_we == 0:
                break
        else:
            print(-1)
            exit()
print(spend + 1)