[0, 0, 0, 0] p2 [2, 0, -6, 0] p3 [2, 0, 6, 0] p4 [-1, -3, 3, -1] q1 [-1, -3, -3, 1] q2 [1, -3, -3, -1] s1 [1, 3, 3, -1] s2 [3, 3, 3, 1] s3 [0, 0, 6, -2] s4 [3, -3, -3, 1] s5 [3, -3, 9, 1] s6 [0, 0, -6, -2] s7 [-3, -3, 3, 1] s8 [-2, -6, 0, 0] s9 [0, -6, 0, 2] s10 [1, -3, 3, 1] s11 [2, 0, 0, 2] s12 [1, -3, 3, -3] s13 [-1, 3, 9, -1] s14 [6, 0, 0, -2] s15 [4, 0, 0, 0] s16 [5, 3, 3, -1] s17 [-1, 3, -3, -1] s18