D12121323331313223313233313131313231323223313131323331323132311311   >>    D1212132333131322331323331313131323132322331313132333132313231131   <<    D12121323331313223313233313131313231323223313131323331323132311313   >>      D12121323331313223313233313131313231323223313131323331323132311312   >>