group() {
	group() {
		cube(size = [2, 2, 2], center = true);
		multmatrix([[1, 0, 0, -3], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 3], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 0], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			group() {
				cube(size = [2, 2, 2], center = true);
			}
		}
	}
	multmatrix([[1, 0, 0, 3], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			group() {
				cube(size = [2, 2, 2], center = true);
			}
		}
	}
	multmatrix([[1, 0, 0, 6], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 6], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 9], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 9], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 12], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 12], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
	multmatrix([[1, 0, 0, 15], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		group() {
			cube(size = [2, 2, 2], center = true);
		}
	}
}