diff --git a/les1/Expressions.py b/les 1/Expressions.py
similarity index 100%
rename from les1/Expressions.py
rename to les 1/Expressions.py
diff --git a/les1/opdr2.py b/les 1/opdr2.py
similarity index 100%
rename from les1/opdr2.py
rename to les 1/opdr2.py
diff --git a/les1/opdr3.py b/les 1/opdr3.py
similarity index 100%
rename from les1/opdr3.py
rename to les 1/opdr3.py
diff --git a/les1/opdr4.py b/les 1/opdr4.py
similarity index 100%
rename from les1/opdr4.py
rename to les 1/opdr4.py
diff --git a/les2/opdr1.py b/les 2/opdr1.py
similarity index 100%
rename from les2/opdr1.py
rename to les 2/opdr1.py
diff --git a/les2/opdr2.py b/les 2/opdr2.py
similarity index 100%
rename from les2/opdr2.py
rename to les 2/opdr2.py
diff --git a/les2/opdr3.py b/les 2/opdr3.py
similarity index 100%
rename from les2/opdr3.py
rename to les 2/opdr3.py