2 ===============================================
10 -----------------------------------------------
14 75/28*N+61/28*L-79/28*M
15 Minimum coefficient(s): {34/7*L-1/7*M}
16 Maximum coefficient(s): {75/28*N+61/28*L-79/28*M}
19 ===============================================
27 -----------------------------------------------
32 Minimum coefficient(s): {34/7*N-5*M}
33 Maximum coefficient(s): {-1/7*N+5*L}
36 ===============================================