diff --git a/2018/SlepenkovDmitry/HomeWork1/HomeWork1.rb b/2018/SlepenkovDmitry/HomeWork1/HomeWork1.rb
new file mode 100644
index 000000000..2c5fd507e
--- /dev/null
+++ b/2018/SlepenkovDmitry/HomeWork1/HomeWork1.rb
@@ -0,0 +1,26 @@
+class PrintPascalTriangle
+  def initialize
+  print "Enter the depth of the triangle n = "
+  @rows = gets.chomp.to_i 
+end
+
+  def calculatedRow
+  triangle = []
+  @rows.times do |row|
+    line = [1]
+    (0..row-1).each {|x| line << (line[x] * (row-x) / (x+1)) }
+    triangle << line
+  end
+  triangle
+end
+
+  def printTriangle
+  max = calculatedRow.flatten.max.to_s.length
+  strings = calculatedRow.map {|arr| arr.map {|int| int.to_s.center(max + 3)} }
+  strings.each do |line|
+    puts line.join.center(strings[-1].join.length)
+  end
+end
+
+row = PrintPascalTriangle.new
+row.printTriangle