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).
arr = list(map(int, input().split(" ")))

t = arr[0]
s = [arr[1], arr[2]]
d = [arr[3], arr[4]]

str = input()

y_mov = d[1] - s[1]
x_mov = d[0] - s[0]

directions = []

if(x_mov<0):
    directions.append("W")
elif(x_mov>0):
    directions.append("E")
elif(x_mov==0):
    directions.append(0)

if(y_mov<0):
    directions.append("S")
elif(y_mov>0):
    directions.append("N")
elif(y_mov==0):
    directions.append(0)

ct = [0, 0]
max_sec = 0
flag1 = 0
flag2 = 0
flag3 = 0
for i in range(len(str)):
    for j in range(len(directions)):
        if(str[i]==directions[j]):
            ct[j]+=1
            max_sec = (i+1)
            
        if(ct[0]==abs(x_mov)):
            flag1 = 1
        if(ct[1]==abs(y_mov)):
            flag2 = 1
        
        if(flag1==1 and flag2==1):
            flag3 = 1
            break
    
    if(flag3==1):
        break
 
if(flag3==0):
    print(-1)
else:
    print(max_sec)