D12121212213231323132323323132322331323331323222333132313123231   >>    D1212121221323132313232332313232233132333132322233313231312323   <<    D12121212213231323132323323132322331323331323222333132313123233   >>      D12121212213231323132323323132322331323331323222333132313123232   >>