S_in = input()
N = int(input())
S_out = input()

if N == 0 or S_in == 'ooo' or S_in == 'xxx':
    if S_in != S_out :
        print('SUCCESS')
    else :
        print('FAILURE')

elif N == 1 :
    if S_in.count('o') != S_out.count('o') or S_in[::-1]==S_out:
        print('SUCCESS')
    else :
        print('FAILURE')

else : # N >= 2
    if S_in.count('o') != S_out.count('o') :
        print('SUCCESS')
    else :
        print('FAILURE')