diff --git a/main.cpp b/main.cpp
index 3414622..8212f3d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,30 +11,33 @@ struct Input
     size_t bin_count{};
 };
 
-Input input_data(istream& inx)
+Input input_data(istream& inx, bool prompt)
 {
     size_t number_count;
-    cerr << "Enter number count: ";
+    if (prompt) cerr << "Enter number count: ";
     inx >> number_count;
 
+
     Input in;
     in.numbers.resize(number_count);
 
     vector<double> numbers(number_count);
+    if (prompt) cerr << "Input some numbers: ";
     for (int i = 0; i < number_count; i++)
     {
-        cerr << "Number[" << i << "]=";
         inx >> in.numbers[i];
     }
 
-    cerr << "Enter bin count: ";
+    if (prompt) cerr << "Enter bin count: ";
     inx >> in.bin_count;
     return in;
 }
 
 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);
 
     double min, max;