for (int c0 = 0; c0 <= 9; c0 += 1) {
  if ((c0 + 1) % 2 == 0) {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      B((c0 - 1) / 2, c1);
  } else {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      A(c0 / 2, c1);
  }
}
for (int c0 = 10; c0 <= 89; c0 += 1) {
  if ((c0 + 1) % 2 == 0) {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      B((c0 - 1) / 2, c1);
  } else {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      A(c0 / 2, c1);
  }
}
for (int c0 = 90; c0 <= 199; c0 += 1) {
  if ((c0 + 1) % 2 == 0) {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      B((c0 - 1) / 2, c1);
  } else {
    for (int c1 = 0; c1 <= 1; c1 += 1)
      A(c0 / 2, c1);
  }
}