diff --git a/2018/YuryKravchenko/homework-1/pascal_tree.rb b/2018/YuryKravchenko/homework-1/pascal_tree.rb
new file mode 100644
index 000000000..1e2345f4a
--- /dev/null
+++ b/2018/YuryKravchenko/homework-1/pascal_tree.rb
@@ -0,0 +1,17 @@
+def pascal(n)
+  print 'Введите базовый номер: '
+  f = gets.chomp.to_i
+  h = f
+    (0..n).each { |r|
+      tree = [h]
+      base = f
+      k = 1
+        (0..r - 1).step(1) { |index|
+        base = base * ( r - k + 1 ) / k
+        tree.push base
+        k += 1}
+    p tree}
+end
+print 'Введите глубину дерева: '
+n = gets.chomp.to_i
+pascal(n)