# coding:utf-8
from collections import Counter as cc
S_before = input()
N = int(input())
S_after = input()
ans = "FAILURE"
if cc(S_before) != cc(S_after):
    ans = "SUCSESS"
elif N == 0:
    if S_before != S_after:
        ans = "SUCSESS"
elif N == 1:
    if S_before[1] != S_after[1]:
        ans = "SUCSESS"
elif N >= 2:
    ans = "FAILURE"

print(ans)