diff --git a/README.md b/README.md
index 73679c8..a3ac9d3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,10 @@
 # Perfect PS Contest setting
 
+```bash
+mkdir {A..M}
+touch {A..M}/main.cpp
+
+# alias solve='g++ main.cpp -o main -g -fsanitize=undefined,address -fno-omit-frame-pointer -Wall -Wextra && echo "Compile Done" && time ./main'
+# alias fast='g++ main.cpp -o main -O2 -Wall && echo "Compile Done" && time ./main'
+```
+