-import "Prelude"\r
-\r
-fib :: Integer -> Integer\r
-fib x | x <= 2 = 1\r
- | True = fib (x-1) + fib (x-2)\r
-\r
-main = fib 13\r
---\r
+import "Prelude"
+
+fib :: Integer -> Integer
+fib x | x <= 2 = 1
+ | True = fib (x-1) + fib (x-2)
+
+main = fib 13
+--
233
\ No newline at end of file