# -*- coding: utf-8 -*-
cdn_x = input("Введіть координату x!")
cdn_y = input("Введіть координату y!")
path = raw_input("Введіть шлях!")

x = cdn_x
y = cdn_y
l = 0

pt = []
count = 0
k = 0

class Position:

    def __init__(self, x, y):
        self.x = x
        self.y = y

t = Position(x, y)
pt.append(t)

for p in path:
	if k == 0:
		c = str(p)
		if c == 'r':
			x = x + 1
			count = count + 1
		elif c == 'l':
		    x = x - 1
		    count = count + 1
		elif c == 'u':
		    y = y + 1
		    count = count + 1
		elif c == 'd':
		    y = y - 1
		    count = count + 1
		l = 0
		if pt:
			k = 1
			while l <= count - 1:
				ins = pt[l]
				l = l + 1
				if x == ins.x and y == ins.y:
					k = 1
				else:
					k = 0
					t = Position(x, y)
					pt.append(t)

if k == 1:
	print 'fail', count
elif k == 0:
    print 'Success'