diff --git a/LABA1.cpp b/LABA1.cpp
index 8153d1b..c0de306 100644
--- a/LABA1.cpp
+++ b/LABA1.cpp
@@ -33,24 +33,31 @@ void FindMinMax(const vector<double>& marks, double & min, double & max) {
     }
 };
 
-int main()
-{
-    Input in = input_data();
-    int VecSize = size(in.marks);
-    double interval = 0, inp = 0, i = 0, min = 0, max = 0, scale = 1;
-    vector <int> chart(in.NCharts);
-    FindMinMax(in.marks, min, max);
-    interval = (max - min) / in.NCharts;
-    for (int x : in.marks) {
+vector <double> MakeHistogram(const vector<double>& marks, int NCharts) {
+    double interval = 0, i = 0, min = 0, max = 0;
+    vector<double> chart(NCharts);
+    FindMinMax(marks, min, max);
+    interval = (max - min) / NCharts;
+    for (int x : marks) {
         i = 0;
         while ((x > min + interval * (i + 1))) {
             i += 1;
         }
         chart[i] += 1;
     }
-    max = *max_element(begin(chart), end(chart));
-    if ((max+4) > 80) {
-        scale = (max+4) / 80;
+    return chart;
+};
+
+int main()
+{
+    const int shift = 4, maxlen = 80;
+    Input in = input_data();
+    int VecSize = size(in.marks);
+    double interval = 0, inp = 0, i = 0, min = 0, max = 0, scale = 1;
+    vector <double> chart = MakeHistogram(in.marks, in.NCharts);
+    FindMinMax(chart, min, max);
+    if ((max+shift) > maxlen) {
+        scale = (max+shift) / maxlen;
     }
     for (i = 0; i < in.NCharts; i++) {
         if (chart[i] < 10) {