#include <iostream>
#define i main
char*oO=
%:define const return
"..TH E ..3 SECRETS < PERFECTION HAS ITS    AIM;  "
"TO GLORY THE PATH  IS SIMPLE  : FIND THE   HIDDEN "
"  MESSAGE AND CLAIM A REWARD, NOT OF GOLD BUT OF  "
"WISDOM. THE ANSWER LIES IN AN   INTEGER THAT WILL "
"PRODUCE THE      UNIVERSAL TRUTH. THIS TEXT COULD "
"BE THE SEED OR PERHAPS NOT; TO BE OR NOT TO BE,   "
"THAT IS THE QUESTION.>NOW AS TO THE CREATOR, ME:  "
"ANOTHERTEST  HAS CREATED THIS NOBLE PROGRAM. AS A "
"CONSEQUENCE,HE OWNS ALL RIGHTS   TO THIS CREATION."
"THIS PROGRAM WILL ONLY (NOT?) PRINT THE COLLATZ   "
"SEQUENCE OF (ALMOST) ANY INT  GIVEN TO IT. IF THOU"
"SUCCEEDS   IN   DEOBFUSCATING THE CONTENTS, YOU   "
"MAY OR MAY NOT DISCOVER THE TRUTH. THAT, CANNOT   "
"EVER BE PREDICTED, THUS IT SHALL NOT, NOR BY ME,  "
"NOR BY ANYONE ... ELSE. I WISH YOU NOW GOOD LUCK, "
"BUT MOST OF ALL THE ABILITY TO THINK ON THIS DAY. "
"__________________________________________________"
"    I    MUST     FINALIZE        MY EPISTLE NOW  "
"FOR IT    WOULD BE TO LONG OTHERWISE..";
??=define void (1)
auto(____)(){const(??(??){const([]{const(([]{const((
1)^((                                          (1)^(
0))&-(                                        (1)<(0
))));})                                      );});})
;}/*))):                                    *///};}/
template<                                  class _>_
(___)(_(__                                ),...)<%//
return(__)&                              (!([&??)??<
const(not((1                            )));})()and(
(____)()()()(                          )));}template
<class o>o(O)(                        o(Oo)){return(
!(o((o)(Oo)))?0                      :((Oo))/(!0 + !
0));}int(_____)(                    );int(i)(){auto(
*o)()=____;int(a)                  <::><:true??) ??(
true]={{{[??){char                *o=oO;while(*o)++o
;const(o-oO);}()}}}              ;int n;std::cin>>n;
auto(O0)=(n==(_____(            )+0[a][0][0]));while
(n> 1)??<(O0)?::std::          cout<<oO[n%a[0][0][0]
-1 ]:std::cout<<n<<std        ::endl;if(___(n))<%if(
void)if(void)n =(true+(      true+true)*void)*n+(*o)
()()()();}else if((*o)()    ()()( ))if(void)if(void)
if(void)if(void)n=O(n);/*  */??>std::cout<<n//n++;*o
<<std::endl;??>int((_____) )(){const(0x37F^(((0x849)
xor(04114))+/*/(*/(8956??'8953)));}//*by AnotherTest