# -*- coding: utf-8 -*-

S_before = input()
N = int(input())
S_after = input()

o_before = o_after = x_before = x_after = 0
for i in range(3):
    if S_before[i] == 'o':
        o_before += 1
    else:
        x_before += 1
    if S_after[i] == 'o':
        o_after += 1
    else:
        x_after += 1

if o_before != o_after:
    print('SUCCESS')
elif o_before == o_after and o_before == 3:
    print('FAILURE')
else:
    # o_beforeとo_after，x_beforeとx_afterはそれぞれ等しく2以下
    if o_before < x_before:
        # コインが1つだけ入っている
        o_dist = abs(S_before.index('o') - S_after.index('o'))
        if o_dist == 0:
            if S_before.index('o') == 0 or S_before.index('o') == 2:
                print('FAILURE')
            elif N != 1:
                print('FAILURE')
            else:
                print('SUCCESS')
        elif o_dist == 1:
            if N >= 1:
                print('FAILURE')
            else:
                print('SUCCESS')
        else:
            if N >= 2:
                print('FAILURE')
            else:
                print('SUCCESS')
    else:
        # コインが2つはいっている
        x_dist = abs(S_before.index('x') - S_after.index('x'))
        if x_dist == 0:
            if S_before.index('x') == 0 or S_before.index('x') == 2:
                print('FAILURE')
            elif N != 1:
                print('FAILURE')
            else:
                print('SUCCESS')
        elif x_dist == 1:
            if N >= 1:
                print('FAILURE')
            else:
                print('SUCCESS')
        else:
            if N >= 2:
                print('FAILURE')
            else:
                print('SUCCESS')