diff --git a/1_sum.py b/1_sum.py
new file mode 100644
index 0000000..900a728
--- /dev/null
+++ b/1_sum.py
@@ -0,0 +1,5 @@
+sum=0
+for i in range(1,500):
+    if (i%5==0)and(i%7!=0):
+        sum=sum+i
+print(sum)