1 for (int c0 = 2; c0 <= 8; c0 += 2) { 2 if ((c0 + 2) % 4 == 0) { 3 for (int c1 = 1; c1 <= 9; c1 += 1) 4 s1(c1, c0); 5 } else { 6 for (int c1 = 1; c1 <= 9; c1 += 1) { 7 s0(c1, c0); 8 s1(c1, c0); 9 } 10 } 11 } 12