1 array 1 2 2 array 1 2 3 var 2 i1 4 var 2 i2 5 var 2 i3 6 var 2 i4 7 var 2 i 8 var 2 j 9 var 2 k 10 var 1 e1 11 var 1 e2 12 write 1 2 1 7 10 13 write 1 2 2 8 11 14 eq 1 3 4 15 eq 1 3 5 16 eq 1 3 6 17 eq 1 4 5 18 eq 1 4 6 19 eq 1 5 6 20 and 1 -14 -15 21 and 1 -16 -17 22 and 1 -18 -19 23 and 1 20 21 24 and 1 22 23 25 eq 1 7 9 26 eq 1 8 9 27 and 1 -25 -26 28 and 1 24 27 29 read 1 1 9 30 read 1 2 9 31 eq 1 29 30 32 and 1 28 -31 33 read 1 12 3 34 read 1 13 3 35 eq 1 33 34 36 and 1 32 35 37 read 1 12 4 38 read 1 13 4 39 eq 1 37 38 40 and 1 36 39 41 read 1 12 5 42 read 1 13 5 43 eq 1 41 42 44 and 1 40 43 45 read 1 12 6 46 read 1 13 6 47 eq 1 45 46 48 and 1 44 47 49 root 1 48