1 var 16 pc 2 var 16 accu 3 var 1 flag 4 array 16 5 5 array 16 16 6 constd 16 10 7 eq 1 1 6 8 constd 16 1 9 redor 1 8 10 and 1 9 7 11 root 1 10 12 next 16 1 1 13 next 16 2 2 14 next 1 3 3 15 anext 16 5 4 4 16 anext 16 16 5 5