From 6b678e08163c6fab38465cdba522d13edffc80e3 Mon Sep 17 00:00:00 2001
From: Christopher Fremond <christopher.fremond@gmail.com>
Date: Fri, 6 Nov 2020 02:53:56 +0000
Subject: [PATCH] Adding of a new exercise printalphabetalt. The goal: printing
 the alphabet alternatively in lowercase and in uppercase from a to Z, and
 then from z to A.

---
 go/tests/prog/printalphabetalt_prog/main.go |  8 ++++++++
 go/tests/prog/printalphabetalt_test/main.go |  9 +++++++++
 subjects/printalphabetalt/README.md         | 20 ++++++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 go/tests/prog/printalphabetalt_prog/main.go
 create mode 100644 go/tests/prog/printalphabetalt_test/main.go
 create mode 100644 subjects/printalphabetalt/README.md

diff --git a/go/tests/prog/printalphabetalt_prog/main.go b/go/tests/prog/printalphabetalt_prog/main.go
new file mode 100644
index 000000000..5d2fc0c96
--- /dev/null
+++ b/go/tests/prog/printalphabetalt_prog/main.go
@@ -0,0 +1,8 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("aBcDeFgHiJkLmNoPqRsTuVwXyZ")
+	fmt.Println("zYxWvUtSrQpOnMlKjIhGfEdCbA")
+}
diff --git a/go/tests/prog/printalphabetalt_test/main.go b/go/tests/prog/printalphabetalt_test/main.go
new file mode 100644
index 000000000..3f0c6890f
--- /dev/null
+++ b/go/tests/prog/printalphabetalt_test/main.go
@@ -0,0 +1,9 @@
+package main
+
+import (
+	"lib"
+)
+
+func main() {
+	lib.ChallengeMain("printalphabetalt")
+}
diff --git a/subjects/printalphabetalt/README.md b/subjects/printalphabetalt/README.md
new file mode 100644
index 000000000..2f18a828a
--- /dev/null
+++ b/subjects/printalphabetalt/README.md
@@ -0,0 +1,20 @@
+## printalphabetalt
+
+### Instructions
+
+Write a program that:
+
+- first prints the Latin alphabet alternatively in lowercase and uppercase in order (from `'a'` to `'Z'`) on a single line.
+- second prints the Latin alphabet alternatively in lowercase and uppercase in reverse order (from `'z'` to `'A'`) on a single line.
+
+A line is a sequence of characters preceding the [end of line](https://en.wikipedia.org/wiki/Newline) character (`'\n'`).
+
+### Usage
+
+```console
+student@ubuntu:~/[[ROOT]]/printalphabetalt$ go build
+student@ubuntu:~/[[ROOT]]/printalphabetalt$ ./printalphabetalt
+aBcDeFgHiJkLmNoPqRsTuVwXyZ
+zYxWvUtSrQpOnMlKjIhGfEdCbA
+student@ubuntu:~/[[ROOT]]/printalphabetalt$
+```