1 (multi-recurse) begin 15
2 (multi-recurse) begin 14
3 (multi-recurse) begin 13
4 (multi-recurse) begin 12
5 (multi-recurse) begin 11
6 (multi-recurse) begin 10
7 (multi-recurse) begin 9
8 (multi-recurse) begin 8
9 (multi-recurse) begin 7
10 (multi-recurse) begin 6
11 (multi-recurse) begin 5
12 (multi-recurse) begin 4
13 (multi-recurse) begin 3
14 (multi-recurse) begin 2
15 (multi-recurse) begin 1
16 (multi-recurse) begin 0
18 multi-recurse: exit(0)
20 multi-recurse: exit(1)
22 multi-recurse: exit(2)
24 multi-recurse: exit(3)
26 multi-recurse: exit(4)
28 multi-recurse: exit(5)
30 multi-recurse: exit(6)
32 multi-recurse: exit(7)
34 multi-recurse: exit(8)
36 multi-recurse: exit(9)
37 (multi-recurse) end 10
38 multi-recurse: exit(10)
39 (multi-recurse) end 11
40 multi-recurse: exit(11)
41 (multi-recurse) end 12
42 multi-recurse: exit(12)
43 (multi-recurse) end 13
44 multi-recurse: exit(13)
45 (multi-recurse) end 14
46 multi-recurse: exit(14)
47 (multi-recurse) end 15
48 multi-recurse: exit(15)