#include <iostream>
#include <cstdint>

typedef int_fast16_t int_;
void game(int_*cell,int_ id,int_ max,int_ n){
	if(id>max)return;
	if(id<1)return;
    int_ count = (id & 0x5555) + ((id >> 1) & 0x5555);
    count = (count & 0x3333) + ((count >> 2) & 0x3333);
    count = (count & 0x0f0f) + ((count >> 4) & 0x0f0f);
    count = (count & 0x00ff) + ((count >> 8) & 0x00ff);
	if(id==max){
		cell[id]=n;
		return;
	}
	if(cell[id]==-1||cell[id]<count){
		cell[id]=n;
		game(cell,id+count,max,n+1);
		game(cell,id-count,max,n+1);
	}
}
int main(){
	int_ max;
	std::cin>>max;
	int_*cell=new int_[max+1];
	for(int i=0;i<max+1;i++){
		cell[i]=-1;
	}
	game(cell,1,max,1);
	std::cout<<cell[max];
	delete[] cell;
}