s = tuple(1 if i=="o" else 0 for i in input())
n = int(input())
t = tuple(1 if i=="o" else 0 for i in input())

n = min(n,10)
dp = [s]
for _ in range(n):
    ndp = set()
    for r in dp:
        ndp.add((r[1],r[0],r[2]))
        ndp.add((r[0],r[2],r[1]))
    dp = ndp
print("FAILURE" if t in dp else "SUCCESS")