diff --git a/main.cpp b/main.cpp
index f7834c8..bc2fb4e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -15,32 +15,34 @@ struct Input
 };
 
 Input
-input_data(istream& in)
+input_data(istream& in, bool prompt)
 {
-
+    if(prompt)
+        cerr << "count=";
     size_t number_count;
-    cerr << "count=";
     in >> number_count;
 
     Input rez;
 
+    if(prompt)
+        cerr << "bin_count= ";
     rez.numbers.resize(number_count);
 
     for (size_t i = 0; i < number_count; i++)
     {
        in >> rez.numbers[i];
     }
-
-    cerr << "bin_count= ";
+    if(prompt)
+        cerr << "bin_count= ";
     in >> rez.bin_count;
-
     return rez;
 }
 
 
 int main()
 {
-    auto in = input_data(cin);
+    bool prompt = true;
+    auto in = input_data(cin, prompt);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
     return 0;