f(1)  
g(,[[5,4,1,2,3],[5,1,4,3,2],[5,3,1,4,2],[5,1,2,4,3],[5,1,3,2,4]])
g([2,5,4,1,3],)
g([2,5,4,1,3],[[5,4,1,2,3],[5,1,4,3,2],[5,3,1,4,2],[5,1,2,4,3],[5,1,3,2,4]])
testh()
s("ab")
