diff --git a/main.cpp b/main.cpp
index 14e987b..67182ae 100644
--- a/main.cpp
+++ b/main.cpp
@@ -33,8 +33,15 @@ input_data(istream& stream, bool prompt)
     return in;
 }
 
-int main()
+int main(int argc, char* argv[])
 {
+    if (argc > 1) {
+        cout << "argc = " << argc << "\n";
+        for (int i = 0; i < argc; i++) {
+            cout << "argv[" << i << "]" << argv[i] << "\n";
+        }
+        return 0;
+    }
     curl_global_init(CURL_GLOBAL_ALL);
     Input in = input_data(cin, true);
     vector<size_t> bins = make_histogram(in.numbers, in.bin_count);