NAME          range.mps
ROWS
 N  obj     
 E  c1      
 E  c2      
 G  c3      
 L  c4      
COLUMNS
    x1        obj                 -1   c1                   1
    x1        c2                  1    c3                   1
    x1        c4                  1
    x2        obj                 -2   c1                   -3
    x2        c2                  -3   c3                   -3
    x2        c4                  -3
    x3        obj                 -3   c1                   -3
    x3        c2                  -3   c3                  -3
    x3        c4                  -3
RHS
    rhs       c1                  15
    rhs       c2                  15
    rhs       c3                  10
    rhs       c4                  20
RANGES
    rhs       c1                  15
    rhs       c2                  -15
    rhs       c3                  10
    rhs       c4                  10
BOUNDS
ENDATA