diff --git a/subjects/compareprog.en.md b/subjects/compareprog.en.md
index 33c196d47..00edb2f84 100644
--- a/subjects/compareprog.en.md
+++ b/subjects/compareprog.en.md
@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Write a program that behaves like the `Compare` function.
+Write a program that behaves like the `Compare` function from the `Go` package `strings`.
 
 This program prints a number after comparing two `string` lexicographically.
 
diff --git a/subjects/doop.en.md b/subjects/doop.en.md
index 00fd0db6a..fd67dc190 100644
--- a/subjects/doop.en.md
+++ b/subjects/doop.en.md
@@ -6,9 +6,9 @@ Write a program that is called `doop`.
 
 The program has to be used with three arguments:
 
--   A value
--   An operator
--   Another value
+- A value
+- An operator
+- Another value
 
 In case of an invalid operator the programs prints `0`.
 
diff --git a/subjects/firstruneprog.en.md b/subjects/firstruneprog.en.md
index a649917c6..c747c00be 100644
--- a/subjects/firstruneprog.en.md
+++ b/subjects/firstruneprog.en.md
@@ -1,6 +1,6 @@
 ## firstruneprog
 
-##**WARNING! VERY IMPORTANT!**
+## **WARNING! VERY IMPORTANT!**
 
 For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:
 
diff --git a/subjects/itoabase.en.md b/subjects/itoabase.en.md
index 33338b168..ec8d29fd6 100644
--- a/subjects/itoabase.en.md
+++ b/subjects/itoabase.en.md
@@ -1,5 +1,16 @@
 ## itoabase
 
+## **WARNING! VERY IMPORTANT!**
+
+For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:
+
+This means that:
+
+- The package needs to be named `package main`.
+- The submitted code needs one declared function main(```func main()```) even if empty.
+- The function main declared needs to **also pass** the `Restrictions Checker`(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done.
+- Every other rules are obviously the same than for a `program`.
+
 ### Instructions
 
 Write a function that:
diff --git a/subjects/lastruneprog.en.md b/subjects/lastruneprog.en.md
index 9914f4642..7cd5b671e 100644
--- a/subjects/lastruneprog.en.md
+++ b/subjects/lastruneprog.en.md
@@ -1,6 +1,6 @@
 ## lastruneprog
 
-##**WARNING! VERY IMPORTANT!**
+## **WARNING! VERY IMPORTANT!**
 
 For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:
 
diff --git a/subjects/printmemory.en.md b/subjects/printmemory.en.md
index 90387674f..f41fde3be 100644
--- a/subjects/printmemory.en.md
+++ b/subjects/printmemory.en.md
@@ -1,6 +1,6 @@
 ## printmemory
 
-##**WARNING! VERY IMPORTANT!**
+## **WARNING! VERY IMPORTANT!**
 
 For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:
 
@@ -30,13 +30,9 @@ Here is a possible program to test your function :
 ```go
 package main
 
-import (
-	piscine ".."
-)
-
 func main() {
 	arr := [10]int{104, 101, 108, 108, 111, 16, 21, 42}
-	piscine.Memory(arr)
+	PrintMemory(arr)
 }
 ```
 
diff --git a/subjects/rot13.en.md b/subjects/rot13.en.md
index 941fdb716..3ff808ecd 100644
--- a/subjects/rot13.en.md
+++ b/subjects/rot13.en.md
@@ -19,6 +19,8 @@ student@ubuntu:~/piscine-go/test$ ./test "abc"
 nop
 student@ubuntu:~/piscine-go/test$ ./test "hello there"
 uryyb gurer
+student@ubuntu:~/piscine-go/test$ ./test "HELLO, HELP"
+URYYB, URYC
 student@ubuntu:~/piscine-go/test$ ./test
 
 student@ubuntu:~/piscine-go/test$
diff --git a/subjects/rpncalc.en.md b/subjects/rpncalc.en.md
index 956e79c81..e4167b37b 100644
--- a/subjects/rpncalc.en.md
+++ b/subjects/rpncalc.en.md
@@ -50,7 +50,7 @@ Or:
 student@ubuntu:~/piscine-go/rpncalc$ go build
 student@ubuntu:~/piscine-go/rpncalc$ ./rpncalc "1 2 * 3 * 4 +" | cat -e
 10$
-student@ubuntu:~/piscine-go/rpncalc$ ./rpncalc 1 2 3 4 +" | cat -e
+student@ubuntu:~/piscine-go/rpncalc$ ./rpncalc "1 2 3 4 +" | cat -e
 Error$
 student@ubuntu:~/piscine-go/rpncalc$ ./rpncalc | cat -e
 Error$
diff --git a/subjects/strlen.en.md b/subjects/strlen.en.md
index 56b82ccc6..3c3625f3a 100644
--- a/subjects/strlen.en.md
+++ b/subjects/strlen.en.md
@@ -21,11 +21,12 @@ package main
 
 import (
 	"fmt"
+	piscine ".."
 )
 
 func main() {
 	str := "Hello World!"
-	nb := StrLen(str)
+	nb := piscine.StrLen(str)
 	fmt.Println(nb)
 }
 ```
diff --git a/subjects/strlen.fr.md b/subjects/strlen.fr.md
index fa6f0d77b..d3db8dd56 100644
--- a/subjects/strlen.fr.md
+++ b/subjects/strlen.fr.md
@@ -21,11 +21,12 @@ package main
 
 import (
 	"fmt"
+	piscine ".."
 )
 
 func main() {
 	str := "Hello World!"
-	nb := StrLen(str)
+	nb := piscine.StrLen(str)
 	fmt.Println(nb)
 }
 ```
diff --git a/subjects/strlenprog.en.md b/subjects/strlenprog.en.md
index 41ae32a51..35d0a627f 100644
--- a/subjects/strlenprog.en.md
+++ b/subjects/strlenprog.en.md
@@ -1,6 +1,6 @@
 ## strlenprog
 
-##**WARNING! VERY IMPORTANT!**
+## **WARNING! VERY IMPORTANT!**
 
 For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:
 
@@ -13,7 +13,7 @@ This means that:
 
 ### Instructions
 
--   Write a function that counts the characters of a `string` and that returns that count.
+- Write a function that counts the `runes` of a `string` and that returns that count.
 
 ### Expected function
 
@@ -32,12 +32,11 @@ package main
 
 import (
 	"fmt"
-	piscine ".."
 )
 
 func main() {
 	str := "Hello World!"
-	nb := piscine.StrLen(str)
+	nb := StrLen(str)
 	fmt.Println(nb)
 }
 ```
diff --git a/subjects/strlenprog.fr.md b/subjects/strlenprog.fr.md
index 949b4fce3..7dd5fea3c 100644
--- a/subjects/strlenprog.fr.md
+++ b/subjects/strlenprog.fr.md
@@ -13,7 +13,7 @@ Cela signifie que:
 
 ### Instructions
 
--   Écrire une fonction qui compte le nombre de caractères d'une `string` et qui retourne le nombre trouvé.
+- Écrire une fonction qui compte le nombre de `runes` d'une `string` et qui retourne le nombre trouvé.
 
 ### Fonction attendue
 
diff --git a/subjects/tabmult.en.md b/subjects/tabmult.en.md
index 26a822188..288a896e7 100644
--- a/subjects/tabmult.en.md
+++ b/subjects/tabmult.en.md
@@ -30,7 +30,7 @@ student@ubuntu:~/piscine-go/test$ ./test 19
 7 x 19 = 133
 8 x 19 = 152
 9 x 19 = 171
-student@ubuntu:~/piscine-go/test$
+student@ubuntu:~/piscine-go/test$ ./test
 
-student@ubuntu:~/piscine-go/
+student@ubuntu:~/piscine-go/test$
 ```