[n] -> { S1[i0, 0, 0] -> [0, 1, i0, 0] : i0 >= 0 and i0 <= n; S2[0, i1, 0] -> [1, 0, i1, 1] : i1 >= 0 and i1 <= n }
[n] -> {  :  }
[n] -> { [i, j, k, l] -> separate[o0] }