#include <stdio.h>

const int bit[21] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576};

void solve(int N)
{
	if (N == 0) {
		printf("{}");
		return;
	}
	
	printf("{");
	int i;
	for (i = 0; bit[i+1] <= N; i++) {
		if ((N & bit[i]) != 0) {
			solve(i);
			printf(",");
		}
	}
	solve(i);
	printf("}");
}

int main()
{
	int N;
	scanf("%d", &N);
	solve(N);
	printf("\n");
	fflush(stdout);
	return 0;
}