recovery matrix group=1;
72  44   8   9   4   4   1   1   1   0;
    74  30  20   7   4   2   1   0   0;
        54  48  13  23   5   4   2   0;
            74  24  16   7   3   1   1;
                48  40   5   5   2   5;
                    31  10   6   3   2;
                        38  30   6   2;
                            19   6   6;
                                13  14;
                                    17;
1048  844  989  971  863  465  845  360  625  760;