1 array 1 1
2 array 1 1
3 zero 2
4 var 1
5 read 1 1 4
6 read 1 1 -4
7 read 1 2 4
8 read 1 2 -4
9 concat 2 5 6
10 concat 2 7 8
11 xor 2 9 10
12 eq 1 11 3
13 ne 1 1 2
14 and 1 12 13
15 root 1 14