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

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