b = input()
n = int(input())
a = input()

if b.count('o') != a.count('o'):
    x = 1
else:
    if n == 0:
        x = [0, 1][a != b]
    elif n > 1:
        x = 0
    else:
        x = [0, 1][a != b[1]+b[0]+b[2] and a != b[0]+b[2]+b[1]]

print(['FAILURE', 'SUCCESS'][x == 1])