diff --git a/main.cpp b/main.cpp
index f3ee515..892980d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,11 +1,11 @@
 #include <iostream>
 #include <vector>
 #include <cmath>
+#include "histogram.h"
 
 using namespace std;
 
-struct
-Input
+struct Input
 {
     vector<double> numbers;
     size_t bin_count{};
@@ -16,87 +16,25 @@ input_data()
 {
 
     size_t number_count;
+    cerr << "vvedite col-vo numbers:";
     cin >> number_count;
     Input in;
 
     in.numbers.resize(number_count);
     for (size_t i = 0; i < number_count; i++)
     {
+        cerr << "N[" << i << "]=";
         cin >> in.numbers[i];
     }
+    cerr << "vvedite col-vo count:";
     cin >> in.bin_count;
     return in;
 }
 
-void
-find_minmax(const vector<double>& numbers, double& min, double& max)
-{
-    max = numbers[0];
-    min = numbers[0];
-    for(size_t i = 0; i < numbers.size(); i++)
-    {
-        if (numbers[i] > max) max = numbers[i];
-        if (numbers[i] < min) min = numbers[i];
-    }
-}
-
-void
-make_histogram(vector<double>& bins, Input in)
-{
-    double min, max;
-    find_minmax(in.numbers, min, max);
-    size_t cor_size = (max - min)/in.bin_count;
-
-    for (size_t i = 0; i < in.numbers.size(); i++)
-    {
-        bool flag = false;
-        for (size_t j = 0; (j < in.bin_count) && !flag; j++)
-        {
-            auto L = min + j*cor_size;
-            auto H = min + (j+1)*cor_size;
-            if ((L <= in.numbers[i]) && (in.numbers[i] <= H))
-            {
-                flag = true;
-                bins[j]++;
-            }
-        }
-        if (!flag) bins[in.bin_count-1]++;
-    }
-}
-
-void
-show_histogram_text(vector<double> bins, Input in)
-{
-    const size_t MAX_ASTERISK = 76;
-    int maxb = bins[0];
-    size_t H;
-
-    for (size_t j = 1; j < in.bin_count; j++)
-    {
-        if (bins[j] > maxb) maxb = bins[j];
-    }
-
-    for (size_t j = 0; j < in.bin_count; j++)
-    {
-        if (maxb > MAX_ASTERISK)
-        {
-            H  = MAX_ASTERISK * (static_cast<double>(bins[j]) / maxb);
-        }
-        else H = bins[j];
-        if (bins[j] < 100) cout << " ";
-        if (bins[j] < 10) cout << " ";
-        cout << bins[j] << "|";
-        for (size_t i = 0; i < H; i++) cout << "*";
-        cout << endl;
-    }
-}
-
 int
 main()
 {
     auto in = input_data();
-    vector<double> bins;
-    bins.resize(in.bin_count);
-    make_histogram(bins, in);
-    show_histogram_text(bins, in);
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    show_histogram_text(bins, in.numbers, in.bin_count);
 }