## Fib test.

res = ''

def fib(n)
  a = 0; b = 1
  for _ in 0..n
   res += to_string(a) + " "
    temp = a;
	a = b;
	b += temp;
  end
end

fib(10)
assert(res == '0 1 1 2 3 5 8 13 21 34 ')