(M,N) = ( 53, 62)     53  62
(M,N) = ( 53, 63)     53  63
(M,N) = ( 54, 62)     54  62
(M,N) = ( 54, 63)     54  63
(M,N) = ( 54, 68)     54  68
(M,N) = ( 54, 69)     54  69
(M,N) = ( 55, 68)     55  68
(M,N) = ( 55, 69)     55  69
PETTZD                  59     99