lc = 1;

Point(1) = {0, 0, 0, lc};
Point(2) = {1, 0, 0, lc};
Point(3) = {2, 0, 0, lc};
Point(4) = {3, 0, 0, lc};
Point(5) = {4, 0, 0, lc};
Point(6) = {0, 1, 0, lc};
Point(7) = {1, 1, 0, lc};
Point(8) = {2, 1, 0, lc};
Point(9) = {3, 1, 0, lc};
Point(10) = {4, 1, 0, lc};
Point(11) = {0, 2, 0, lc};
Point(12) = {1, 2, 0, lc};
Point(13) = {2, 2, 0, lc};
Point(14) = {3, 2, 0, lc};
Point(15) = {4, 2, 0, lc};
Point(16) = {0, 3, 0, lc};
Point(17) = {1, 3, 0, lc};
Point(18) = {2, 3, 0, lc};
Point(19) = {3, 3, 0, lc};
Point(20) = {4, 3, 0, lc};
Point(21) = {0, 4, 0, lc};
Point(22) = {1, 4, 0, lc};
Point(23) = {2, 4, 0, lc};
Point(24) = {3, 4, 0, lc};
Point(25) = {4, 4, 0, lc};

Line(27) = {1, 2};
Line(28) = {2, 7};
Line(29) = {7, 6};
Line(30) = {6, 1};
Line(31) = {2, 3};
Line(32) = {3, 8};
Line(33) = {8, 7};
Line(34) = {7, 12};
Line(35) = {3, 4};
Line(36) = {4, 9};
Line(37) = {9, 8};
Line(38) = {4, 5};
Line(39) = {5, 10};
Line(40) = {10, 9};
Line(41) = {7, 12};
Line(42) = {12, 11};
Line(43) = {11, 6};
Line(44) = {8, 13};
Line(45) = {13, 12};
Line(46) = {9, 14};
Line(47) = {14, 13};
Line(48) = {10, 15};
Line(49) = {15, 14};
Line(50) = {12, 17};
Line(51) = {17, 16};
Line(52) = {16, 11};
Line(53) = {13, 18};
Line(54) = {18, 17};
Line(55) = {14, 19};
Line(56) = {19, 18};
Line(57) = {15, 20};
Line(58) = {20, 19};
Line(59) = {17, 22};
Line(60) = {22, 21};
Line(61) = {21, 16};
Line(62) = {18, 23};
Line(63) = {23, 22};
Line(64) = {19, 24};
Line(65) = {24, 23};
Line(66) = {20, 25};
Line(67) = {25, 24};

Line Loop(68) = {27, 28, 29, 30};
Line Loop(69) = {31, 32, 33, -28};
Line Loop(70) = {35, 36, 37, -32};
Line Loop(71) = {38, 39, 40, -36};
Line Loop(72) = {-29, 34, 42, 43};
Line Loop(73) = {-33, 44, 45, -41};
Line Loop(74) = {-37, 46, 47, -44};
Line Loop(75) = {-40, 48, 49, -46};
Line Loop(76) = {-42, 50, 51, 52};
Line Loop(77) = {-45, 53, 54, -50};
Line Loop(78) = {-47, 55, 56, -53};
Line Loop(79) = {-49, 57, 58, -55};
Line Loop(80) = {-51, 59, 60, 61};
Line Loop(81) = {-54, 62, 63, -59};
Line Loop(82) = {-56, 64, 65, -62};
Line Loop(83) = {-58, 66, 67, -64};

Plane Surface(84) = {68};
Plane Surface(85) = {69};
Plane Surface(86) = {70};
Plane Surface(87) = {71};
Plane Surface(88) = {72};
Plane Surface(89) = {73};
Plane Surface(90) = {74};
Plane Surface(91) = {75};
Plane Surface(92) = {76};
Plane Surface(93) = {77};
Plane Surface(94) = {78};
Plane Surface(95) = {79};
Plane Surface(96) = {80};
Plane Surface(97) = {81};
Plane Surface(98) = {82};
Plane Surface(99) = {83};


Physical Point(1100) = {0, 1, 2, 3, 4};
Physical Point(2200) = {21, 22, 23, 24, 25};

Physical Surface(3300) = {84, 86, 89, 91, 92, 94, 97, 99};
Physical Surface(4400) = {85, 87, 88, 90, 93, 95, 96, 98};