Sources/test/axisym2.flavia.msh

MESH Quad-4Gr0 dimension 2 ElemType Quadrilateral Nnode 4
 Coordinates
# node number   coordinate_x  coordinate_y  coordinate_z
1	10	0
2	11	0
3	10	1
4	11	1
end coordinates

Elements
# element  node_1   node_2  node_3 ... material_number
1	1	2	4	3	0
end elements