{

  for (int c4 = 1; c4 <= n; c4 += 1)

    s2(c4);

  for (int c1 = 1; c1 < n; c1 += 1) {

    for (int c4 = 0; c4 < n - c1; c4 += 1)

      s0(c1, n - c4);

    for (int c3 = 0; c3 < n - c1; c3 += 1)

      for (int c4 = c1 + 1; c4 <= n; c4 += 1)

        s1(c1, n - c3, c4);

  }

  for (int c1 = 1; c1 <= n; c1 += 1) {

    s4(c1);

    for (int c3 = c1 + 1; c3 <= n; c3 += 1)

      s3(c3, c1);

  }

}