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