diff --git a/2022/city/10/domino/main.cpp b/2022/city/10/domino/domino.cpp
similarity index 100%
rename from 2022/city/10/domino/main.cpp
rename to 2022/city/10/domino/domino.cpp
diff --git a/2022/city/10/domino/main_slow.cpp b/2022/city/10/domino/domino_slow.cpp
similarity index 100%
rename from 2022/city/10/domino/main_slow.cpp
rename to 2022/city/10/domino/domino_slow.cpp
diff --git a/2022/city/10/energie/main.cpp b/2022/city/10/energie/energie.cpp
similarity index 100%
rename from 2022/city/10/energie/main.cpp
rename to 2022/city/10/energie/energie.cpp
diff --git a/2022/city/9/domino/main.cpp b/2022/city/9/domino/domino.cpp
similarity index 100%
rename from 2022/city/9/domino/main.cpp
rename to 2022/city/9/domino/domino.cpp
diff --git a/2022/city/9/energie/main.cpp b/2022/city/9/energie/energie.cpp
similarity index 100%
rename from 2022/city/9/energie/main.cpp
rename to 2022/city/9/energie/energie.cpp