diff --git a/technical_tests/reorganize_string.py b/technical_tests/reorganize_string.py
new file mode 100644
index 0000000..15cf120
--- /dev/null
+++ b/technical_tests/reorganize_string.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+# coding: utf8
+
+"""
+Author: freezed <git@freezed.me> 2020-07-16
+Licence: `GNU GPL v3` GNU GPL v3: http://www.gnu.org/licenses/
+
+This file is part of [`free_zed/mypsb`](https://gitlab.com/free_zed/mypsb/)
+"""
+
+
+def main(string, n, sep):
+    """
+    This function reorganize `string` by removing spaces & groups by `n`
+    characters separated by `sep`.
+
+    :Tests:
+    >>> main("ab c de fgh ijk", 2, "|")
+    'ab|cd|ef|gh|ij|k'
+    >>> main("ab c de fgh ijk", 3, "|")
+    'abc|def|ghi|jk'
+    """
+    answer = ""
+
+    return answer
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()