D12121212213231323132323323132322331323331323221211111323132323221   >>    D1212121221323132313232332313232233132333132322121111132313232322   <<    D12121212213231323132323323132322331323331323221211111323132323223   >>      D12121212213231323132323323132322331323331323221211111323132323222   >>