1[n] -> { s0[i, j] -> [-1 + i, 0, n - i, n - j] : i >= 1 and j >= 1 + i and j <= n; s1[i, j, k] -> [-1 + i, 1, n - i, n - j] : j >= 1 + i and k >= 1 + i and i >= 1 and j <= n and k <= n }
2{ : }
3[n] -> { [i0, i1, i2, i3] -> atomic[o0] : o0 <= 2; [i0, i1, i2, i3] -> separate[o0] : o0 >= 3 }
4