diff --git a/main.cpp b/main.cpp
index f6a5de1..abb657b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -33,6 +33,12 @@ int
 main(int argc, char* argv[])
 {
     curl_global_init(CURL_GLOBAL_ALL);
+     if (argc > 1) {
+        cout << "argc = " << argc << endl;
+        for (int i = 0; i < argc; i++){
+            cout << "argv[" << i << "] = " << argv[i] << endl;
+        }
+    }
     auto in = input_data(cin, false);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);