diff --git a/main.cpp b/main.cpp
index bd0e3af..b6d8290 100644
--- a/main.cpp
+++ b/main.cpp
@@ -13,17 +13,23 @@ struct Input {
 };
 
 Input
-input_data(istream& in) {
+input_data(istream& in, bool prompt) {
     Input inp;
     size_t number_count;
-    cerr << "Enter number count: ";
+    if (prompt){
+        cerr << "Enter number count: ";
+    }
     in >> number_count;
     inp.numbers.resize(number_count);
-    cerr << "Enter numbers: " << endl;
+    if (prompt){
+        cerr << "Enter numbers: " << endl;
+    }
     for (size_t i = 0; i < number_count; i++) {
         in >> inp.numbers[i];
     }
-    cerr << "Enter bin count: ";
+    if (prompt){
+        cerr << "Enter bin count: ";
+    }
     in >> inp.bin_count;
     return inp;
 }