st = list(input())
n = int(input())
sa = list(input())

if sorted(st) != sorted(sa):
    print("SUCCESS")
elif n >= 2:
    print("FAILURE")
elif n >= 1:
    st2 = list(st)
    st3 = list(st)
    st2[0], st2[1] = st2[1], st2[0]
    st3[1], st3[2] = st3[2], st3[1]
    if st2 == sa or st3 == sa:
        print("FAILURE")
    else:
        print("SUCCESS")
else:
    if st == sa:
        print("FAILURE")
    else:
        print("SUCCESS")