def sus7cola(n):
return cola7(n,0,5)
def cola7(n,tre,cinc):
if n == 0: return pow(3,tre)
if n == 1: return cinc
if n%2==0: return cola7(n-1,tre+1,cinc)
if (n%2==1): return cola7(n-1,tre,cinc*3)
print(sus7cola(2))
ZGVmIHN1czdjb2xhKG4pOiAKCXJldHVybiBjb2xhNyhuLDAsNSkKZGVmIGNvbGE3KG4sdHJlLGNpbmMpOiAKCWlmIG4gPT0gMDogcmV0dXJuIHBvdygzLHRyZSkKCWlmIG4gPT0gMTogcmV0dXJuIGNpbmMKCWlmIG4lMj09MDogcmV0dXJuIGNvbGE3KG4tMSx0cmUrMSxjaW5jKQoJaWYgKG4lMj09MSk6IHJldHVybiBjb2xhNyhuLTEsdHJlLGNpbmMqMykKcHJpbnQoc3VzN2NvbGEoMikpCgk=