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  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
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Problems > Consecutive Differences

Consecutive Differences

Difficulty: 800 3500 ms 128 MB

implementation

Print the N−1 differences ai+1 − ai (print EMPTY when N = 1).

Input: the first line has N; the second line has N integers.

Output: N−1 integers, or EMPTY.

Constraints:

  • 1 ≤ N ≤ 105
  • -10000 ≤ ai ≤ 10000

Sample Tests

Input 1
4
5 2 7 7
Output 1
-3 5 0
Input 2
1
3
Output 2
EMPTY

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