D12121323331313223313233313131313231323223313131323331323132333131323221   >>    D1212132333131322331323331313131323132322331313132333132313233313132322   <<    D12121323331313223313233313131313231323223313131323331323132333131323223   >>      D12121323331313223313233313131313231323223313131323331323132333131323222   >>