diff --git a/2018/YuliyaBondareva/1/pascal_tree.rb b/2018/YuliyaBondareva/1/pascal_tree.rb
index 88682c934..718afb204 100644
--- a/2018/YuliyaBondareva/1/pascal_tree.rb
+++ b/2018/YuliyaBondareva/1/pascal_tree.rb
@@ -14,9 +14,9 @@ def tree(number, base_number)
       s += 1
       branch.push ' /'
     end
-    arrToStr = trn.join('   ')
+    arr_to_str = trn.join('   ')
     str_end = branch.join('  \\')
-    puts "#{index + 1}:" + ' ' + arrToStr.center(width[1].to_i)
+    puts "#{index + 1}:" + ' ' + arr_to_str.center(width[1].to_i)
     if index != (number - 1)
       puts '  ' + "#{str_end}  \\".center(width[1].to_i)
     end
@@ -26,11 +26,15 @@ def tree(number, base_number)
 puts 'Depth?'
 number = gets.chomp
 base_number = ENV['BASE']
-while number.to_i <= 0 || number.nil? || base_number.to_i <= 0 do
-  puts 'BASE and depth must be positive. '
+while number.to_i <= 0 do
+  puts 'depth must be positive. '
   puts 'Depth?'
   number = gets.chomp
+
+end
+while base_number.to_i <= 0 do
+  puts 'BASE must be positive. '
   puts 'BASE?'
-  base_number = gets.chomp  
+  base_number = gets.chomp
 end
 tree(number.to_i, base_number.to_i)