D33132233232132333132313232321323132313331323113313233313221121   >>    D3313223323213233313231323232132313231333132311331323331322112   <<    D33132233232132333132313232321323132313331323113313233313221123   >>      D33132233232132333132313232321323132313331323113313233313221122   >>