From 9414b2574ab3518e73f27c2a801f2973021dc28c Mon Sep 17 00:00:00 2001
From: Presley <presley@pop-os.localdomain>
Date: Sat, 13 Oct 2018 20:32:25 +0800
Subject: [PATCH] added sum_of_all_numbers solution

---
 beginner/sum_of_all_numbers_presleywong.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 beginner/sum_of_all_numbers_presleywong.py

diff --git a/beginner/sum_of_all_numbers_presleywong.py b/beginner/sum_of_all_numbers_presleywong.py
new file mode 100644
index 0000000..727255b
--- /dev/null
+++ b/beginner/sum_of_all_numbers_presleywong.py
@@ -0,0 +1,13 @@
+def sum_all(input_list):
+    if type(input_list) is not list:
+       return
+
+    total = 0
+    input_list.sort()
+    start = input_list[0]
+    end = input_list[-1]+1
+
+    for n in range(start, end):
+        total += n
+
+    return total