D121213233313133313132321123231323331323233233313133313231323133313221323231   >>    D12121323331313331313232112323132333132323323331313331323132313331322132323   <<    D121213233313133313132321123231323331323233233313133313231323133313221323233   >>      D121213233313133313132321123231323331323233233313133313231323133313221323232   >>