diff --git a/1_sum.py b/1_sum.py
new file mode 100644
index 0000000..133f141
--- /dev/null
+++ b/1_sum.py
@@ -0,0 +1,6 @@
+sum=0
+for i in range(1,501):
+	if (i%5==0)&(i%7!=0):
+		sum=sum+i
+print(sum)
+