diff --git a/README.md b/README.md
index 0235db3..e037f77 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@
 23 * 15 = 345
 30 / 7 = 4
 33 + 84 = 117
+80 + 31 = 111