a=0.4;
Point (1) = {0, 0, 0, a};
Point (2) = {1, 0, 0, a};
Point (3) = {1, 1, 0, a};
Point (4) = {1, 1, 1, a};
Point (5) = {1, 0, 1, a};
Point (6) = {0, 1, 0, a};
Point (7) = {0, 1, 1, a};
Point (8) = {0, 0, 1, a};


Line(1) = {1,2};
Line(2) = {2,5};
Line(3) = {5,8};
Line(4) = {8,1};
Line(5) = {2,3};
Line(6) = {3,4};
Line(7) = {4,5};
Line(8) = {4,7};
Line(9) = {7,8};
Line(10) = {3,6};
Line(11) = {6,7};
Line(12) = {1,6};
Line Loop(13) = {9,4,12,11};
Plane Surface(14) = {13};
Line Loop(15) = {8,-11,-10,6};
Plane Surface(16) = {15};
Line Loop(17) = {5,6,7,-2};
Plane Surface(18) = {17};
Line Loop(19) = {1,5,10,-12};
Plane Surface(20) = {19};
Line Loop(21) = {4,1,2,3};
Plane Surface(22) = {21};
Line Loop(23) = {7,3,-9,-8};
Plane Surface(24) = {23};
Surface Loop(25) = {18,20,22,14,24,16};
Volume(26) = {25};
