cl1 = 1;
Point(1) = {0, 0, 0, cl1};
Point(2) = {1, 0, 0, cl1};
Point(3) = {0, 0, 1, cl1};
Point(4) = {1, 0, 1, cl1};
Point(5) = {0, 1, 0, cl1};
Point(6) = {1, 1, 0, cl1};
Point(8) = {0, 1, 1, cl1};
Point(10) = {1, 1, 1, cl1};
Line(1) = {1, 2};
Line(2) = {3, 4};
Line(3) = {1, 3};
Line(4) = {2, 4};
Line(5) = {5, 6};
Line(6) = {1, 5};
Line(7) = {2, 6};
Line(9) = {5, 8};
Line(11) = {3, 8};
Line(13) = {8, 10};
Line(15) = {4, 10};
Line(17) = {6, 10};
Line Loop(8) = {1, 7, -5, -6};
Ruled Surface(8) = {8};
Line Loop(12) = {3, 11, -9, -6};
Ruled Surface(12) = {12};
Line Loop(16) = {2, 15, -13, -11};
Ruled Surface(16) = {16};
Line Loop(20) = {4, 15, -17, -7};
Ruled Surface(20) = {20};
Delete {
  Surface{16, 20, 8, 12};
}
Line(21) = {8, 4};
Line(22) = {4, 6};
Line(23) = {8, 6};
Line Loop(24) = {15, -17, -22};
Plane Surface(25) = {24};
Line Loop(26) = {15, -13, 21};
Plane Surface(27) = {26};
Line Loop(28) = {13, -17, -23};
Plane Surface(29) = {28};
Line Loop(30) = {21, 22, -23};
Plane Surface(31) = {30};
Line(32) = {8, 1};
Line(33) = {1, 4};
Line Loop(34) = {32, 3, 11};
Plane Surface(35) = {34};
Line Loop(36) = {11, 21, -2};
Plane Surface(37) = {36};
Line Loop(38) = {2, -33, 3};
Plane Surface(39) = {38};
Line Loop(40) = {32, 33, -21};
Plane Surface(41) = {40};
Line(42) = {1, 6};
Line Loop(43) = {42, -5, -6};
Plane Surface(44) = {43};
Line Loop(45) = {6, 9, 32};
Plane Surface(46) = {45};
Line Loop(47) = {9, 23, -5};
Plane Surface(48) = {47};
Line Loop(49) = {42, -23, 32};
Plane Surface(50) = {49};
Line Loop(51) = {22, -7, 4};
Plane Surface(52) = {51};
Line Loop(53) = {7, -42, 1};
Plane Surface(54) = {53};
Line Loop(55) = {4, -33, 1};
Plane Surface(56) = {55};
Line Loop(57) = {33, 22, -42};
Plane Surface(58) = {57};
Surface Loop(59) = {31, 25, 27, 29};
Volume(60) = {59};
Surface Loop(61) = {41, 37, 35, 39};
Volume(62) = {61};
Surface Loop(63) = {44, 48, 46, 50};
Volume(64) = {63};
Surface Loop(65) = {52, 54, 56, 58};
Volume(66) = {65};
Surface Loop(67) = {31, 41, 50, 58};
Volume(68) = {67};
