diff --git a/ch11/model.py b/ch11/model.py
new file mode 100644
index 0000000..ad5a30b
--- /dev/null
+++ b/ch11/model.py
@@ -0,0 +1,49 @@
+height = 100
+width = 100
+
+grid_model = [0] * height
+
+for i in range(height):
+    grid_model[i] = [0] * width
+
+
+def next_gen():
+    global grid_model
+
+    for i in range(0, height):
+        for j in range(0, width):
+            cell = 0
+            print('Проверяем клетку', i, j)
+            count = count_neighbors(grid_model, i, j)
+
+            if grid_model[i][j] == 0:
+                if count == 3:
+                    cell = 1
+            elif grid_model[i][j] == 1:
+                if count == 2 or count == 3:
+                    cell = 1
+
+
+def count_neighbors(grid, row, col):
+    count = 0
+    if row - 1 >= 0:
+        count = count + grid[row - 1][col]
+    if (row - 1 >= 0) and (col - 1 >= 0):
+        count = count + grid[row - 1][col - 1]
+    if (row - 1 >= 0) and (col + 1 < width):
+        count = count + grid[row - 1][col + 1]
+    if col - 1 >= 0:
+        count = count + grid[row][col - 1]
+    if col + 1 < width:
+        count = count + grid[row][col + 1]
+    if row + 1 < height:
+        count = count + grid[row + 1][col]
+    if (row + 1 < height) and (col - 1 >= 0):
+        count = count + grid[row + 1][col - 1]
+    if (row + 1 < height) and (col + 1 < width):
+        count = count + grid[row + 1][col + 1]
+    return count
+
+
+if __name__ == '__main__':
+    next_gen()