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class Solution {
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  public List<Integer> selfDividingNumbers(int left, int right) {
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    List<Integer> ans = new ArrayList<>();
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    while (left <= right) {
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      if (fun(left)) ans.add(left);
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      left++;
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    }
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    return ans;
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  }
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  boolean fun(int x) {
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    int k = x;
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    while (k > 0) {
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      int y = k % 10;
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      k = k / 10;
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      if (y == 0 || x % y != 0) return false;
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    }
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    return true;
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  }
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}