INORDER = pa pb pc pd pe;
OUTORDER = pf;
pf = !nh;
n_n8 = !pd*[25];
n_n5 = !pe*[26];
n_n6 = !pe*[27];
n_n7 = !pe*[28];
nh = [34] + [33];
n_n9 = !pd*[29];
n_n10 = !pd*[30];
[25] = !pc*!pb;
[26] = !pd*!pc;
[27] = !pd*!pb;
[28] = !pd*!pa;
[29] = !pc*!pa;
[30] = !pb*!pa;
[31] = n_n8 + n_n5;
[32] = n_n6 + n_n7;
[33] = n_n9 + n_n10;
[34] = [31] + [32];