diff --git a/python/entier.py b/python/1/entier.py
similarity index 100%
rename from python/entier.py
rename to python/1/entier.py
diff --git a/python/exo1.py b/python/1/exo1.py
similarity index 100%
rename from python/exo1.py
rename to python/1/exo1.py
diff --git a/python/exo2.py b/python/1/exo2.py
similarity index 100%
rename from python/exo2.py
rename to python/1/exo2.py
diff --git a/python/exo3.py b/python/1/exo3.py
similarity index 100%
rename from python/exo3.py
rename to python/1/exo3.py
diff --git a/python/exo3b.py b/python/1/exo3b.py
similarity index 100%
rename from python/exo3b.py
rename to python/1/exo3b.py
diff --git a/python/first.py b/python/1/first.py
similarity index 100%
rename from python/first.py
rename to python/1/first.py
diff --git a/python/loop.py b/python/1/loop.py
similarity index 100%
rename from python/loop.py
rename to python/1/loop.py
diff --git a/python/math0.py b/python/1/math0.py
similarity index 100%
rename from python/math0.py
rename to python/1/math0.py
diff --git a/python/string0.py b/python/1/string0.py
similarity index 100%
rename from python/string0.py
rename to python/1/string0.py
diff --git a/python/2Prog.md b/python/2Prog.md
new file mode 100644
index 0000000..e69de29