diff --git a/std/string/array/concat.lb b/std/string/array/concat.lb
new file mode 100644
index 0000000..a5095ae
--- /dev/null
+++ b/std/string/array/concat.lb
@@ -0,0 +1,25 @@
+@ 0
+ args 0
+ size
+ #exec std/string/array/rev.lb
+
+
+ args 1
+ dup
+@ 1
+ kjz 2
+ args 1
+ #exec std/rot.lb
+ #exec std/rot.lb
+ #expr -
+ jmp 1
+
+@ 2
+ pop
+ ;#exec std/string/array/rev.lb ; Finish getting arguments
+
+ #expr +
+ #exec std/rev.lb 
+ pop
+ size
+ quit