min 0 a + 0 b + z
st
 2 a - b + z > -24.3
 4 a - b + z > -19.7
 6 a - b + z > -17.8
 8 a - b + z > -14
10 a - b + z > -12.3
12 a - b + z > -7.2
14 a - b + z > -5.5
-2 a + b + z > 24.3
-4 a + b + z > 19.7
-6 a + b + z > 17.8
-8 a + b + z > 14
-10 a + b + z > 12.3
-12 a + b + z > 7.2
-14 a + b + z > 5.5
end