D121213233313133313132321123231323331323233233313133313231323223231   >>    D12121323331313331313232112323132333132323323331313331323132322323   <<    D121213233313133313132321123231323331323233233313133313231323223233   >>      D121213233313133313132321123231323331323233233313133313231323223232   >>