diff --git a/README.md b/README.md
index 2f14133..34c53e0 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,21 @@ this bash script is set to take N recipients and encrypt four file to make sure
 
 the logic behind that is really simple:
 
+```
+#the combination matrix for a quorum of 3 recipients on 5:
+#recipients: A,B,C,D,E
+#
+#A,B,C
+#A,B,D
+#A,B,E
+#A,C,D
+#A,C,E
+#A,D,E
+#B,C,D
+#B,C,E
+#B,D,E
+#C,D,E
+```
 
 
 ### requirements: