diff --git a/hello16.rb b/hello16.rb
index d364f4a..0db4562 100644
--- a/hello16.rb
+++ b/hello16.rb
@@ -1,4 +1,4 @@
 #
 #
-a |= "0000" .to_i
-p(a)
+a=12345
+p("#{a}".length)
diff --git a/hello17.rb b/hello17.rb
new file mode 100644
index 0000000..465defb
--- /dev/null
+++ b/hello17.rb
@@ -0,0 +1,6 @@
+#
+#
+(1..50).each { |i|
+  int=("#{i}").split.map(% :to_i )
+  printf("%d,%d\n",i,int.sum)
+}