eulercat
diff --git a/‎21/1.cpp b/‎21/1.cpp
diff --git a/‎21/1.py b/‎21/1.py
diff --git a/‎21/2.cpp b/‎21/2.cpp
diff --git a/‎21/2.py b/‎21/2.py
diff --git a/‎21/3.cpp b/‎21/3.cpp
diff --git a/‎21/3.py b/‎21/3.py
diff --git a/‎21/4.cpp b/‎21/4.cpp
diff --git a/‎21/4.py b/‎21/4.py
diff --git a/‎21/5.cpp b/‎21/5.cpp
diff --git a/‎21/5.py b/‎21/5.py
diff --git a/‎21/6.cpp b/‎21/6.cpp
diff --git a/‎21/6.py b/‎21/6.py