#!/usr/bin/ruby -Ku -rjcode
string = "\xef\xbc\xa1" + "\xef\xbc\xa2" + "\xef\xbc\xa3" +
"\xef\xbc\xa4" + "\xef\xbc\xa5" + "\xef\xbc\xa6"
string.size # => 18
string.jsize # => 6