S=input()
N=int(input())
T=input()

if S.count("o")!=T.count("o"):
    print("SUCCESS")
    exit()

if S.count("o")==3 or S.count("o")==0:
    print("FAILURE")
    exit()

if N==0:
    if S==T:
        print("FAILURE")
    else:
        print("SUCCESS")
    exit()

N%=2

if N==1:
    A=list(S)

    A[0],A[1]=A[1],A[0]

    if A==list(T):
        print("FAILURE")
        exit()

    A[0],A[1]=A[1],A[0]
    A[2],A[1]=A[1],A[2]

    if A==list(T):
        print("FAILURE")
        exit()

    print("SUCCESS")
    exit()

if N==0:
    print("FAILURE")