#include <bits/stdc++.h>
using namespace std;
int arr[1000000] = {0};
int sum(vector<int> v) {
  int ret = 0;
  for (int i = 0; i < v.size(); i++) ret += v[i];
  return ret;
}
int main() {
  int i, j, k, s;
  scanf("%d %d", &s, &k);
  for (i = 1, j = k; arr[i - 1] < s; i++, j++) {
    if (j == k || j - 1 == k) {
      arr[i] = 1;
    } else if (2 * k >= j) {
      arr[i] = 2 * arr[i - 1];
    } else {
      arr[i] = 2 * arr[i - 1] - arr[i - k - 1];
    }
  }
  vector<int> vv;
  while (1) {
    vv.push_back(arr[i--]);
    if (sum(vv) > s) vv.pop_back();
    if (sum(vv) == s) break;
  }
  cout << vv.size() << endl;
  for (int i = 0; i < vv.size(); i++) cout << vv[i] << " ";
  return 0;
}
