diff --git a/build.py b/build.py
index 8b13789..4a68633 100644
--- a/build.py
+++ b/build.py
@@ -1 +1,17 @@
+n = int(raw_input('Enter n :'))
 
+output = []
+
+a,b = 0,1
+
+output.extend([a,b])
+
+i = 2
+
+while i < n:
+    c = a + b
+    a,b = b,c
+    output.append(c)
+    i = i +1
+
+print output