1 for (int c1 = 0; c1 <= 7; c1 += 1) 2 s0(1, c1); 3 for (int c0 = 2; c0 <= 6; c0 += 1) { 4 for (int c1 = 0; c1 < c0 - 1; c1 += 1) 5 s1(c0, c1); 6 for (int c1 = c0 - 1; c1 <= 4; c1 += 1) { 7 s1(c0, c1); 8 s0(c0, c1); 9 } 10 for (int c1 = 5; c1 <= 7; c1 += 1) 11 s0(c0, c1); 12 } 13 for (int c0 = 7; c0 <= 8; c0 += 1) 14 for (int c1 = c0 - 1; c1 <= 7; c1 += 1) 15 s0(c0, c1); 16