D3312121211331322331313232233132333132333132233132313331333131232212321   >>    D331212121133132233131323223313233313233313223313231333133313123221232   <<    D3312121211331322331313232233132333132333132233132313331333131232212323   >>      D3312121211331322331313232233132333132333132233132313331333131232212322   >>