B=string
b=B.sub
C=B.len
function r(s, S)
 if s=="" then return S end
 S=S or ""
 return r(b(s,2),b(s,1,1)..S)
end
function p(s)
 for i=1,C(s) do
  if not(b(s,i,i) == " ") then W=W..b(s,i,i) else
  F=F..r(W).." "
  W=""
  end
  end
  F=F..r(W).." "
end

repeat
F,W="",""
print("String? (q=quit)")
m=io.read()
x=m=="q"and os.exit()
p(m)
print(F)
until x