1 S2(1, 0, 1, 0); 2 S4(1, 0, 1, 0); 3 S3(2, 0, 1, 1); 4 S4(2, 0, 1, 1); 5 for (int c0 = 3; c0 <= 10; c0 += 1) { 6 if ((c0 + 1) % 3 == 0) { 7 S3(c0, (c0 - 2) / 3, (c0 + 1) / 3, (c0 + 1) / 3); 8 } else if (c0 % 3 == 0) { 9 S1(c0, c0 / 3, c0 / 3, c0 / 3); 10 } else { 11 S2(c0, (c0 - 1) / 3, (c0 + 2) / 3, (c0 - 1) / 3); 12 } 13 S4(c0, c0 / 3, (c0 - 1) / 3 + 1, c0 - (c0 - 1) / 3 - c0 / 3 - 1); 14 } 15