vertex  1  0  0  0.2 1
vertex  2  1  0  0.25 1
vertex  3  1  2  0.25 1
vertex  4  0  1  0.25 1
vertex  5  2  0  0.1  2
vertex  6  3  0  0.1  2
vertex  7  3  1  0.1  2
vertex  8  2  1  0.1  2
line  1  1  2  1  0
line  2  2  3  1  0
line  3  3  4  1  0
line  4  4  1  1  0
line  5  5  6  1  0
line  6  6  7  1  0
line  7  7  8  1  0
line  8  8  5  1  0
contour  4  1  2  3  4
contour  4  5  6  7  8
dof 2
subdomain 1  10
subdomain 2  20
mesh gm
EOF