start = input()
n = int(input())
end = input()

ans = "SUCCESS"

move_list = [ ["012"], ["102","021"], ["120","201"], ["210"] ]
movable_list = []
if start.count("o") != end.count("o"):
	 print(ans)
else: 
	if start.count("o") in [3,0]:
		print(ans)
	else:
		for i in range(4):
			for j in move_list[i]:
				if "".join([ start[int(j[k])] for k in range(3) ]) == end:
					movable_list.append(i)

		suc = 0
		for i in movable_list:
			if n >= i and (n-i) % 2 == 0:
				suc = 1
		if suc == 1:
			ans = "FAILURE"
		print(ans)