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).
#!/usr/bin/env python3
import sys

if __name__ == "__main__":
	t, sx, sy, ex, ey = map(int, sys.stdin.readline().split())
	wis = sys.stdin.readline()[:-1]
	n, s, w, e = 0, 0, 0, 0
	if sx > ex:
		x = [sx - ex, "W"]
	elif sx < ex:
		x = [ex - sx, "E"]
	else:
		x = [0, ""]
	if sy > ey:
		y = [sy - ey, "S"]
	elif sy < ey:
		y = [ey - sy, "N"]
	else:
		y = [0, ""]
	i = 0
	while (x[0] > 0 or y[0] > 0) and i < t :
		if wis[i] == x[1]:
			x[0] -= 1
		elif wis[i] == y[1]:
			y[0] -= 1
		i += 1
	if i>= t:
		print(-1)
	else:
		print(i)
			
