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).
# -*- coding: utf-8 -*-
"""
Created on Thu Apr 23 00:40:17 2020

@author: Kashem Pagla
"""


t,sx,sy,ex,ey=map(int, input().split())
a=ex-sx;b=ey-sy;E=0;W=0;N=0;S=0;i=0;j=0
string=list(input())
    
    
if(a>0):
    i=string.count("E")
    E=i
elif(a<0):
    i=string.count("W") 
    W=i
if(b>0):
    j=string.count("N")
    N=j
elif(b<0):
    j=string.count("S")    
    S=j
string.reverse()

if(E>W):
    E="E"
else:
    E="W"

if(N>S):
    N='N'
else:
    N="S"    
  
if(abs(a)==i and abs(b)==j):
    print(t-min(string.index(E),string.index(N)))   
    
else:
    print("-1")    
    
    

"""
if(a>0):
    E=a
elif(a<0):
    W=int(abs(a))

if(b>0):
    N=b
elif(b<0):
    S=int(abs(b))  
"""    