diff --git a/main.cpp b/main.cpp
index 699341a..db08b7d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,7 +11,7 @@
 using namespace std;
 
 typedef uint16_t Storage;
-const size_t ARGS_COUNT = 3;
+const size_t ARGS_COUNT = 4;
 const size_t FUNCTION_LEN = 1ll << ARGS_COUNT;
 const size_t FUNCTIONS_COUNT = 1ll << FUNCTION_LEN;
 typedef Function<Storage, FUNCTION_LEN> MyFunction;