D121212121213132313113313231123313231323132322131323132333132322332311   >>    D12121212121313231311331323112331323132313232213132313233313232233231   <<    D121212121213132313113313231123313231323132322131323132333132322332313   >>      D121212121213132313113313231123313231323132322131323132333132322332312   >>