diff --git a/ziad_ramadan.md b/ziad_ramadan.md
new file mode 100644
index 0000000..90c463f
--- /dev/null
+++ b/ziad_ramadan.md
@@ -0,0 +1,7 @@
+### problrm solution with python
+
+```python
+number = int(input('enter a number between 0 and 10e9: '))
+sum = (number * (number + 1))/2
+print(f'the sum of the entered number and it\'s previous numbers is: {sum})
+```