bef = list(raw_input())
N = input()
aft = list(raw_input())

if bef.count(['x']) != aft.count(['x']):
    print 'SUCCESS'
    exit()

if N == 0:
    if bef == aft:
        print 'FAILURE'
        exit()
    else:
        print 'SUCCESS'
        exit()

if N == 1:
    possible = [[bef[1], bef[0], bef[2]], [bef[0], bef[2], bef[1] ]]
    if aft in possible:
        print 'FAILURE'
        exit()
    else:
        print 'SUCCESS'
        exit()

elif N > 1:
    if N % 2 == 0:
        possible = [[bef[0], bef[1], bef[2]], [bef[1], bef[2], bef[0]], [bef[2], bef[0], bef[1]]]
    else:
        possible = [[bef[2], bef[1], bef[0]], [bef[1], bef[0], bef[2]], [bef[0], bef[2], bef[1]]]
    if aft in possible:
        print 'FAILURE'
    else:
        print 'SUCCESS'