D121213233313111121133132321123231323132321133132313231221323223311   >>    D12121323331311112113313232112323132313232113313231323122132322331   <<    D121213233313111121133132321123231323132321133132313231221323223313   >>      D121213233313111121133132321123231323132321133132313231221323223312   >>