Sb = raw_input()
N = input()
Sa = raw_input()

if sorted(Sb) != sorted(Sa):
    print("SUCCESS")
    quit()
if N >= 2:
    print("FAILURE")
    quit()
if N == 0:
    if Sb == Sa:
        print("FAILURE")
    else:
        print("SUCCESS")
    quit()
if Sa[0] == Sb[1] and Sa[1] == Sb[0] or Sa[1] == Sb[2] and Sa[2] == Sb[1]:
    print("FAILURE")
else:
    print("SUCCESS")