diff --git a/subjects/quada/README.md b/subjects/quada/README.md
deleted file mode 100644
index 2a9f30392..000000000
--- a/subjects/quada/README.md
+++ /dev/null
@@ -1,111 +0,0 @@
-## quadrangle
-
-### Instructions
-
-Write a function `QuadA` that prints a **valid** rectangle of width `x` and of height `y`.
-
-The function must draw the rectangles as in the examples.
-
-`x` and `y` will always be positive numbers. Otherwise, the function should print nothing.
-
-### Expected function
-
-```go
-func QuadA(x,y int) {
-
-}
-```
-
-### Usage
-
-Here is are possible programs to test your function :
-
-Program #1
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadA(5,3)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-o---o
-|   |
-o---o
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #2
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadA(5,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-o---o
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #3
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadA(1,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-o
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #4
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadA(1,5)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-o
-|
-|
-|
-o
-student@ubuntu:~/[[ROOT]]/test$
-```
diff --git a/subjects/quadb/README.md b/subjects/quadb/README.md
deleted file mode 100644
index 573a61c98..000000000
--- a/subjects/quadb/README.md
+++ /dev/null
@@ -1,111 +0,0 @@
-## quadrangle
-
-### Instructions
-
-Write a function `QuadB` that prints a **valid** rectangle of width `x` and of height `y`.
-
-The function must draw the rectangles as in the examples.
-
-`x` and `y` will always be positive numbers. Otherwise, the function should print nothing.
-
-### Expected function
-
-```go
-func QuadB(x,y int) {
-
-}
-```
-
-### Usage
-
-Here is are possible programs to test your function :
-
-Program #1
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadB(5,3)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-/***\
-*   *
-\***/
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #2
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadB(5,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-/***\
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #3
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadB(1,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-/
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #4
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadB(1,5)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-/
-*
-*
-*
-\
-student@ubuntu:~/[[ROOT]]/test$
-```
diff --git a/subjects/quadc/README.md b/subjects/quadc/README.md
deleted file mode 100644
index 0bdbad69c..000000000
--- a/subjects/quadc/README.md
+++ /dev/null
@@ -1,111 +0,0 @@
-## quadrangle
-
-### Instructions
-
-Write a function `QuadC` that prints a **valid** rectangle of width `x` and of height `y`.
-
-The function must draw the rectangles as in the examples.
-
-`x` and `y` will always be positive numbers. Otherwise, the function should print nothing.
-
-### Expected function
-
-```go
-func QuadC(x,y int) {
-
-}
-```
-
-### Usage
-
-Here is are possible programs to test your function :
-
-Program #1
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadC(5,3)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBA
-B   B
-CBBBC
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #2
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadC(5,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBA
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #3
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadC(1,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #4
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadC(1,5)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-B
-B
-B
-C
-student@ubuntu:~/[[ROOT]]/test$
-```
diff --git a/subjects/quadd/README.md b/subjects/quadd/README.md
deleted file mode 100644
index 8e709ed62..000000000
--- a/subjects/quadd/README.md
+++ /dev/null
@@ -1,111 +0,0 @@
-## quadrangle
-
-### Instructions
-
-Write a function `QuadD` that prints a **valid** rectangle of width `x` and of height `y`.
-
-The function must draw the rectangles as in the examples.
-
-`x` and `y` will always be positive numbers. Otherwise, the function should print nothing.
-
-### Expected function
-
-```go
-func QuadD(x,y int) {
-
-}
-```
-
-### Usage
-
-Here is are possible programs to test your function :
-
-Program #1
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadD(5,3)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBC
-B   B
-ABBBC
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #2
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadD(5,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBC
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #3
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadD(1,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #4
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadD(1,5)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-B
-B
-B
-A
-student@ubuntu:~/[[ROOT]]/test$
-```
diff --git a/subjects/quade/README.md b/subjects/quade/README.md
deleted file mode 100644
index 13b380b9c..000000000
--- a/subjects/quade/README.md
+++ /dev/null
@@ -1,111 +0,0 @@
-## quadrangle
-
-### Instructions
-
-Write a function `QuadE` that prints a **valid** rectangle of width `x` and of height `y`.
-
-The function must draw the rectangles as in the examples.
-
-`x` and `y` will always be positive numbers. Otherwise, the function should print nothing.
-
-### Expected function
-
-```go
-func QuadE(x,y int) {
-
-}
-```
-
-### Usage
-
-Here is are possible programs to test your function :
-
-Program #1
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadE(5,3)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBC
-B   B
-CBBBA
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #2
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadE(5,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-ABBBC
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #3
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadE(1,1)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-student@ubuntu:~/[[ROOT]]/test$
-```
-
-Program #4
-
-```go
-package main
-
-import piscine ".."
-
-func main() {
-	piscine.QuadE(1,5)
-}
-```
-
-And its output :
-
-```console
-student@ubuntu:~/[[ROOT]]/test$ go build
-student@ubuntu:~/[[ROOT]]/test$ ./test
-A
-B
-B
-B
-C
-student@ubuntu:~/[[ROOT]]/test$
-```