D3312121211331313331313232233132322132333132322112113313231313232311   >>    D331212121133131333131323223313232213233313232211211331323131323231   <<    D3312121211331313331313232233132322132333132322112113313231313232313   >>      D3312121211331313331313232233132322132333132322112113313231313232312   >>