#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<to;x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

ll table[]= {
            1,
   1469980682,   3043866212,   4668805409,   6304910373,
   7993963848,   9642632564,  11294354943,  13027785740,
  14738125641,  16528261375,  18210846386,  19866094009,
  21598491427,  23305273534,  25096174497,  26851772374,
  28602397046,  30427698867,  32270214646,  34179892637,
  35795799216,  37474898933,  39197471652,  40939570400,
  42754518130,  44462028976,  46246138687,  48061009294,
  49915842586,  51804505761,  53529119448,  55324780533,
  57133698007,  59013445746,  60879847551,  62731107733,
  64657845640,  66594902248,  68606219970,  70213317069,
  71896995173,  73611431536,  75356722003,  77182126886,
  78884623046,  80667255480,  82482422734,  84337635812,
  86217961301,  87953309938,  89746820666,  91556662143,
  93439998092,  95303593667,  97158013922,  99080204117,
 101016865959, 103042167188, 104735939624, 106520038461,
 108339020461, 110194551904, 112090962920, 113932646967,
 115853066778, 117756428334, 119756595296, 121611143237,
 123494368506, 125404818570, 127360339056, 129354551818,
 131294634763, 133318905970, 135350966231, 137462808125,
 139052375614, 140732668145, 142445346067, 144194746393,
 146037422438, 147724195504, 149512054409, 151331584274,
 153185209653, 155051645119, 156798952109, 158596635939,
 160402984627, 162286550795, 164149606192, 166003338830,
 167926774511, 169866379992, 171876516828, 173576727178,
 175365124328, 177188326764, 179046824749, 180935812837,
 182776411125, 184711441709, 186615413487, 188617425859,
 190457184794, 192340450187, 194259404542, 196219122517,
 198200809867, 200148332580, 202170968418, 204206289209,
 206291552308, 207999147186, 209789717168, 211606934845,
 213471105767, 215354169177, 217198961226, 219130300531,
 221046311026, 223051245661, 224881948287, 226765329947,
 228690056611, 230647419412, 232625258768, 234578074839,
 236597532732, 238637796475, 240718182584, 242543758169,
 244441961634, 246354023499, 248340289572, 250293791186,
 252267865239, 254282368803, 256342539975, 258381856246,
 260332956441, 262353169362, 264392085346, 266499308735,
 268531551868, 270653190668, 272777094984, 274954969328,
 276550885608, 278235349289, 279949996554, 281699656520,
 283532815989, 285230291483, 287018460850, 288843338529,
 290697914218, 292555622135, 294299027632, 296108809336,
 297913802581, 299797478106, 301659455418, 303513296426,
 305438074433, 307378730113, 309375584150, 311084691351,
 312874881380, 314691888318, 316556574461, 318438834135,
 320283900459, 322215373230, 324132816437, 326137829796,
 327967124398, 329850743236, 331776265114, 333733585567,
 335710857866, 337664009017, 339683323432, 341723231862,
 343789429912, 345507238667, 347300064350, 349113030840,
 350984406135, 352860264736, 354707032557, 356636401290,
 358564384537, 360569937186, 362394197650, 364277970856,
 366198335844, 368164629325, 370136993397, 372090932249,
 374111296941, 376151464705, 378224220960, 380058390875,
 381957670005, 383870119640, 385856452156, 387803833108,
 389785718954, 391799556548, 393861322106, 395892667666,
 397847294362, 399867029816, 401906744673, 404011963610,
 406045283138, 408166458655, 410293988630, 412459892513,
 414170300487, 415960418167, 417777139873, 419642241648,
 421523913358, 423369329089, 425300867467, 427219090689,
 429224980146, 431052903006, 432936691509, 434863107905,
 436819529994, 438796401986, 440750473367, 442769590824,
 444808941609, 446887863691, 448715363575, 450613672574,
 452525875722, 454512303700, 456465371949, 458440607830,
 460454459144, 462516131473, 464552796690, 466505438580,
 468525009072, 470565134403, 472670820245, 474703374234,
 476824486461, 478949396296, 481137046691, 482947439062,
 484844914786, 486755371546, 488739231350, 490705646259,
 492663323054, 494681424791, 496736570450, 498791098622,
 500733994162, 502758835083, 504792318352, 506906580542,
 508935069724, 511049944011, 513166144224, 515389888649,
 517288857480, 519289749375, 521307331285, 523399099799,
 525438600325, 527525826917, 529645152611, 531830142929,
 533911179954, 535991669365, 538110881857, 540290279141,
 542445766977, 544627454221, 546846436546, 549136811513,
 550918245602, 552577704794, 554309590979, 556033975615,
 557829972985, 559563840963, 561330089610, 563154351847,
 564994400089, 566933008719, 568618071111, 570404156594,
 572223399213, 574077826799, 575973613140, 577815644715,
 579740475323, 581642857022, 583642878785, 585412682639,
 587185448355, 589004843649, 590849466513, 592776838356,
 594584205659, 596480632590, 598390213848, 600373164701,
 602276789225, 604131558058, 606055535834, 607996922408,
 610014086322, 611936152792, 613942070950, 615953831172,
 618055837482, 619832855781, 621609731741, 623425191203,
 625271673298, 627194398350, 629008378139, 630905954546,
 632817224875, 634802011556, 636703471280, 638556986940,
 640483343578, 642421663991, 644434745133, 646369655949,
 648375252409, 650387040722, 652490864964, 654340820929,
 656224576189, 658146134026, 660104803135, 662085614135,
 664034735323, 666056469887, 668092915894, 670191528127,
 672123851671, 674129434810, 676141175724, 678244658509,
 680275412064, 682374196306, 684492287082, 686688081834,
 688498052941, 690271265396, 692090271191, 693934884550,
 695861454783, 697669335632, 699566093251, 701476114233,
 703459014946, 705362572698, 707217077730, 709141525004,
 711083438845, 713099812794, 715022516642, 717028460170,
 719040292107, 721142705765, 723002026267, 724885629032,
 726803561592, 728761045579, 730747568720, 732693287993,
 734717019390, 736749758874, 738856174302, 740777465961,
 742783307821, 744795165468, 746896572050, 748933922639,
 751024347007, 753141880458, 755336643853, 757242843585,
 759125818601, 761035892927, 762989904072, 764984543942,
 766926219065, 768950249380, 770981663499, 773102984407,
 775002837011, 777003979124, 779020939116, 781115568136,
 783154062627, 785241482314, 787360097555, 789546215920,
 791553252818, 793534166666, 795550462220, 797612465334,
 799687356918, 801743227036, 803862443625, 806016345293,
 808158770188, 810211805541, 812331967883, 814480115181,
 816665287720, 818815284449, 821033071135, 823291446296,
 825336664996, 827085965369, 828930392300, 830720144582,
 832614810573, 834456466214, 836329001352, 838244378913,
 840200563740, 842172566043, 844015128001, 845924301194,
 847830932678, 849827622308, 851765990426, 853747688137,
 855773169362, 857835953013, 859806361441, 861660536604,
 863582897550, 865519592653, 867544389704, 869447143816,
 871446393635, 873463619464, 875554302728, 877522802074,
 879503038972, 881526923742, 883590032966, 885658701687,
 887720236940, 889838183538, 891996345815, 894045653774,
 895894981736, 897822674154, 899754550956, 901760199509,
 903674751149, 905672137367, 907685190026, 909772129132,
 911755883600, 913735370979, 915747908991, 917808707287,
 919885714570, 921941106979, 924059753965, 926210825894,
 928324426778, 930270736126, 932294263359, 934327743215,
 936441420445, 938472256198, 940594928117, 942709938290,
 944923194197, 946936098999, 949049124016, 951165540848,
 953382717840, 955503787985, 957723191654, 959946162612,
 962209863199, 964024768740, 965922590824, 967834326487,
 969819285239, 971779514592, 973744657012, 975763287764,
 977816739031, 979866439343, 981812882713, 983836311144,
 985870025629, 987983393422, 990014429317, 992137825273,
 994252783159, 996463258969, 998367757387,1000000000001,
};

ll N;

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>N;
	
	/*
	make table
	ll step=0;
	ll cur=1,tar=100000000;
	while(cur<N) {
		step++;
		cur += __builtin_popcountll(cur);
		if(step==tar) {
			_P("\t{ %12lld, %12lld},\n",cur,step);
			tar+=100000000;
		}
	}
	*/
	if(N==1) return _P("1\n");
	
	x=lower_bound(table,table+sizeof(table)/8,N)-table-1;
	ll cur=table[x];
	ll step=x*100000000LL+1;
	while(cur<N) step++, cur += __builtin_popcountll(cur);
	
	if(cur==N) cout<<step<<endl;
	else cout<<-1<<endl;
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}