diff --git a/Concurrent Systems/test/Untitled.md b/Concurrent Systems/test/Untitled.md
index 69c4ce0..3948923 100644
--- a/Concurrent Systems/test/Untitled.md	
+++ b/Concurrent Systems/test/Untitled.md	
@@ -57,9 +57,11 @@ operation begin_write() :=
 	CW.signal() # wakes eventually other waiting writers *they will return false*
 	if (AR + AW != 0) then
 		CW.wait()
-	if LASTW
+	if (LASTW != i) then
+		return false
 	AW++
 	WW--
+	return true
 
 operation end_write() :=
 	AW--
@@ -67,4 +69,12 @@ operation end_write() :=
 		CW.signal()
 	else
 		CR.signal()
+```
+
+```
+CNT initalized to the value I want to initalize the semaphore
+
+up() :=
+	if CNT < 0 then
+		
 ```
\ No newline at end of file