[RUN] c:\ruby\bin\ruby.exe strcat.ruby 10000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 10000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 10000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 20000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 20000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 20000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 30000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 30000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 30000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 40000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 40000 -- OK
[RUN] c:\ruby\bin\ruby.exe strcat.ruby 40000 -- OK