diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8e4396e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.idea
+
+*.[oa]
+cmake-build*/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..9712e9b
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.10)
+project(test)
+
+set(CMAKE_CXX_STANDARD 17)
+
+add_executable(test test.cpp)
diff --git a/test.cpp b/test.cpp
index f77c448..aec8918 100644
--- a/test.cpp
+++ b/test.cpp
@@ -3,7 +3,7 @@
 #include <iostream>
 
 int main() {
-    Group g = T(4500);
+    Group g = T(100);
 
     auto s = std::chrono::system_clock::now();
     auto cosets = g.solve();