D131333132213233313233313131133132333132313223313231323211232322231   >>    D13133313221323331323331313113313233313231322331323132321123232223   <<    D131333132213233313233313131133132333132313223313231323211232322233   >>      D131333132213233313233313131133132333132313223313231323211232322232   >>