1 for (int c0 = 2; c0 <= 9; c0 += 1) { 2 if (c0 >= 5) { 3 s1(c0, 1); 4 for (int c1 = 2; c1 <= 9; c1 += 1) { 5 s1(c0, c1); 6 s0(c0, c1); 7 } 8 } else { 9 for (int c1 = 2; c1 <= 9; c1 += 1) 10 s0(c0, c1); 11 } 12 } 13