#SRC: JCON

procedure main()

   write(left("abc"))
   write(left("def", ))
   write(left("ghi", &null))
   write(left("jkl", 2))
   write(left("mno", 3))
   write(left(237, 4))
   write(left("stu", 5))
   write(left("vwx", 6))

   write(left("abc", 3, ))
   write(left("def", , "."))
   write(left("ghi", &null, "."))
   write(left("jkl", 2, "."))
   write(left("mno", 3, "."))
   write(left(237, 4, "."))
   write(left("stu", 5, "."))
   write(left("vwx", 6, "."))

   write(left("abc", 3, ))
   write(left("def", , "<>"))
   write(left("ghi", &null, "<>"))
   write(left("jkl", 2, "<>"))
   write(left("mno", 3, "<>"))
   write(left(237, 4, "<>"))
   write(left("stu", 5, "<>"))
   write(left("vwx", 6, "<>"))
end