diff --git a/.gitignore b/.gitignore
index ab6ff95..1b80791 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 *.ipr
 *.iws
 
-out/
\ No newline at end of file
+out/
+4K.jar
\ No newline at end of file
diff --git a/build.sh b/build.sh
new file mode 100644
index 0000000..66f9e6f
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,9 @@
+rm -r out
+javac -d ./out M.java
+mkdir ./out/META-INF
+echo "Manifest-Version: 1.0
+Class-Path: .
+Main-Class: M
+" >> ./out/META-INF/MANIFEST.MF
+cd out
+zip -r9 ./../4K.jar *
\ No newline at end of file