eulercat
diff --git a/‎12/1.cpp‎ b/‎12/1.cpp‎
diff --git a/‎12/1.java‎ b/‎12/1.java‎
diff --git a/‎12/2.cpp‎ b/‎12/2.cpp‎
diff --git a/‎12/2.java‎ b/‎12/2.java‎
diff --git a/‎12/3.cpp‎ b/‎12/3.cpp‎
diff --git a/‎12/3.java‎ b/‎12/3.java‎
diff --git a/‎12/4.cpp‎ b/‎12/4.cpp‎
diff --git a/‎12/4.java‎ b/‎12/4.java‎
diff --git a/‎12/5.cpp‎ b/‎12/5.cpp‎
diff --git a/‎12/5.java‎ b/‎12/5.java‎