1 array 1 1
2 array 1 1
3 var 1
4 var 1
5 var 1
6 var 1
9 eq 1 3 5
10 eq 1 4 6
11 and 1 9 10
12 read 1 1 3
13 read 1 2 3
14 eq 1 12 13
15 and 1 11 14
16 root 1 -15