consecutive bits

#include <stdio.h>
#include <stdint.h>

void printBin(uint64_t x) {
  for (int i = sizeof(x) * 8 - 1; i >= 0; i--) {
    printf("%d", (int)(1 & (x >> i)));
  }
  puts("");
}

int one(uint64_t x, int pos) {
  return 1 & (x >> pos);
}

int main(void) {
  uint64_t x;
  scanf("%lu", &x);
  printBin(x);
  int len = 0;
  for (int i = 0; i < sizeof(x) * 8; i++) {
    if (one(x, i)) {
      len++;
    } else {
      if (i && one(x, i - 1)) {
        printf("%d ", len);
      }
      len = 0;
    }
  }
  putchar('\n');
  return 0;
}