Sb = input()
N = int(input())
Sa = input()
if sorted(Sb) != sorted(Sa):
    print('SUCCESS')
elif N >= 2:
    print('FAILURE')
elif N == 1:
    if Sb[1] + Sb[0] + Sb[2] == Sa:
        print('FAILURE')
    elif Sb[0] + Sb[2] + Sb[1] == Sa:
        print('FAILURE')
    else:
        print('SUCCESS')
elif Sb == Sa:
    print('FAILURE')
else:
    print('SUCCESS')