sb=raw_input()
n=int(raw_input())
sa=raw_input()

if n==0 and (sb.count("x") != sa.count("x")) or (sb.count("o") != sa.count("o")):
    print("SUCCESS")
elif n == 1:
    if ("o" in sb[2] and "o" in sa[0]) or ("o" in sb[0] and "o" in sa[2]):
        if ("o" in sb[1]) and ("o" in sa[1]):
            print("FAILURE")
        else:
            print("SUCCESS")
else:
    print("FAILURE")