def sus7cola(n):
return cola7(n,1,5)
def cola7(n,tre,cinc):
if n == 0: return tre
if n == 1: return cinc
if n%2==0: return cola7(n-1,tre*3,cinc)
if (n%2==1): return cola7(n-1,tre,cinc*3)
print(sus7cola(2))
ZGVmIHN1czdjb2xhKG4pOiAKCXJldHVybiBjb2xhNyhuLDEsNSkKZGVmIGNvbGE3KG4sdHJlLGNpbmMpOiAKCWlmIG4gPT0gMDogcmV0dXJuIHRyZQoJaWYgbiA9PSAxOiByZXR1cm4gY2luYwoJaWYgbiUyPT0wOiByZXR1cm4gY29sYTcobi0xLHRyZSozLGNpbmMpCglpZiAobiUyPT0xKTogcmV0dXJuIGNvbGE3KG4tMSx0cmUsY2luYyozKQpwcmludChzdXM3Y29sYSgyKSkKCQ==