diff --git a/02-add_nums.sh b/02-add_nums.sh
index 2fd13cb..e19ad7f 100644
--- a/02-add_nums.sh
+++ b/02-add_nums.sh
@@ -11,5 +11,16 @@ sum=$(( first+second+third ))
 
 echo "The sum is $sum"
 
-# exercise: ask the user for the width and height and present total
-# number of pixels
+# --- Eyob Kabeto final merged version ---
+echo "Enter the width of the screen:"
+read width
+
+echo "Enter the height of the screen:"
+read height
+
+total_pixels=$(( width * height ))
+echo "Your screen has $total_pixels pixels total."
+
+echo "Now let's estimate half that area for a preview window."
+half_pixels=$(( total_pixels / 2 ))
+echo "Half-size preview uses $half_pixels pixels."
\ No newline at end of file
diff --git a/branches_graph.png b/branches_graph.png
new file mode 100644
index 0000000..c999093
Binary files /dev/null and b/branches_graph.png differ