#include <stdio.h>

int bc(int a) {
	int c = 0;
	while(a) {
		c += a % 2;
		a /= 2;
	}
	return c;
}

int time[21][1 << 20];
int next[21][1 << 20];

int main(void) {
	long long int n;
	scanf("%lld", &n);
	
	int u = n >> 20, l = n % (1 << 20), i, j;
	
	for(i = 0; i <= 20; i++) {
	for(j = (1 << 20) - 1; 0 <= j; j--) {
		int k = j + i + bc(j);
		if( (1 << 20) <= k ) {
			time[i][j] = 1;
			next[i][j] = k % (1 << 20);
		} else {
			time[i][j] = time[i][k] + 1;
			next[i][j] = next[i][k];
		}
	}
	}
	
	int up, lp = 1;
	long long int c = 1;
	for(up = 0; up < u; up++) {
		c += time[ bc(up) ][lp];
		lp = next[ bc(up) ][lp];
	}
	
	while(lp < l) {
		lp += bc(u) + bc(lp);
		c++;
	}
	
	printf("%lld\n", (lp == l) ? c : -1 );
	return 0;
}