diff --git a/detaileddifferences.py b/detaileddifferences.py
new file mode 100644
index 0000000..b4a44d4
--- /dev/null
+++ b/detaileddifferences.py
@@ -0,0 +1,6 @@
+n = int(input())
+for _ in range(n):
+    a = input().strip()
+    b = input().strip()
+    d = ["*" if x != y else "." for x, y in zip(a, b)]
+    print(f'{a}\n{b}\n{"".join(d)}\n')