#include <iostream>

void f(unsigned int x, int iteration)
{
cout<<"iteration:"<<iteration<<" value:"<<x<<"\n";
if(iteration <64)
{
f((3*x)+1,iteration+1);
}

}
int main()
{
f(0,0);
return 0;
}

iteration:0 value:0
iteration:1 value:1
iteration:2 value:4
iteration:3 value:13
iteration:4 value:40
iteration:5 value:121
iteration:6 value:364
iteration:7 value:1093
iteration:8 value:3280
iteration:9 value:9841
iteration:10 value:29524
iteration:11 value:88573
iteration:12 value:265720
iteration:13 value:797161
iteration:14 value:2391484
iteration:15 value:7174453
iteration:16 value:21523360
iteration:17 value:64570081
iteration:18 value:193710244
iteration:19 value:581130733
iteration:20 value:1743392200
iteration:21 value:935209305
iteration:22 value:2805627916
iteration:23 value:4121916453
iteration:24 value:3775814768
iteration:25 value:2737509713
iteration:26 value:3917561844
iteration:27 value:3162750941
iteration:28 value:898318232
iteration:29 value:2694954697
iteration:30 value:3789896796
iteration:31 value:2779755797
iteration:32 value:4044300096
iteration:33 value:3542965697
iteration:34 value:2038962500
iteration:35 value:1821920205
iteration:36 value:1170793320
iteration:37 value:3512379961
iteration:38 value:1947205292
iteration:39 value:1546648581
iteration:40 value:344978448
iteration:41 value:1034935345
iteration:42 value:3104806036
iteration:43 value:724483517
iteration:44 value:2173450552
iteration:45 value:2225384361
iteration:46 value:2381185788
iteration:47 value:2848590069
iteration:48 value:4250802912
iteration:49 value:4162474145
iteration:50 value:3897487844
iteration:51 value:3102528941
iteration:52 value:717652232
iteration:53 value:2152956697
iteration:54 value:2163902796
iteration:55 value:2196741093
iteration:56 value:2295255984
iteration:57 value:2590800657
iteration:58 value:3477434676
iteration:59 value:1842369437
iteration:60 value:1232141016
iteration:61 value:3696423049
iteration:62 value:2499334556
iteration:63 value:3203036373
iteration:64 value:1019174528