D33132233232132333132313232321323132313331323113313231333223311   >>    D3313223323213233313231323232132313231333132311331323133322331   <<    D33132233232132333132313232321323132313331323113313231333223313   >>      D33132233232132333132313232321323132313331323113313231333223312   >>