Michael Ulm <michael.ulm / isis-papyrus.com> writes:

> a=[]
> 34.times{k=0;puts (a.map!{|i|k+k=i}<<1).join(" ")}

a=[]
34.times{k=0;puts (a.map!{|i|k+k=i}<<1)*" "}

-- 
Christian Neukirchen  <chneukirchen / gmail.com>  http://chneukirchen.org