diff --git a/main.cpp b/main.cpp
index 7d919de..846440e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,26 +11,26 @@ struct Input {
     size_t bin_count{};
 };
 
-Input input_data() {
+Input input_data(istream& in) {
     size_t number_count;
     
     cerr << "Введите кол-во чисел в строке: ";
-    cin >> number_count;
-    Input in;
-    in.numbers.resize(number_count);
+    in >> number_count;
+    Input input;
+    input.numbers.resize(number_count);
     
     cerr << "Введите строку чисел: ";
     for (int i = 0; i < number_count; i++) {
-        cin >> in.numbers[i];
+        in >> input.numbers[i];
     }
     
     cerr << "Введите кол-во корзин: ";
-    cin >> in.bin_count;
-    return in;
+    in >> input.bin_count;
+    return input;
 }
 
 int main () {
-    auto in = input_data();
+    auto in = input_data(cin);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
     return 0;