# PARI/GP, <s>76</s> 73 bytes

_Saved three bytes courtesy of [Mitch Schwartz](https://codegolf.stackexchange.com/q/63442/63859?noredirect=1#comment154061_63859)._

<!-- language-all: lang-default -->

    for(n=b=!a=1,99,b=a+a=b;print(if(b%2,"",Fibo)if(b%3,if(b%2,b,""),Nacci)))

---

**Sample Usage**

    $ gp -qf < fibo-nacci.gp