D121212121213132313113313231123313231323132322131323132333132322331322231   >>    D12121212121313231311331323112331323132313232213132313233313232233132223   <<    D121212121213132313113313231123313231323132322131323132333132322331322233   >>      D121212121213132313113313231123313231323132322131323132333132322331322232   >>