LogiQuest

368. Remove Duplicates from Sorted List

EasyLinked List

The list is sorted. Remove nodes so each value appears once and print the list.

Input format

Line 1: n Line 2: n sorted values

Output format

The deduplicated list.

Example 1

Input

5
1 1 2 3 3

Output

1 2 3

Example 2

Input

3
1 1 1

Output

1

Constraints

1 ≤ n ≤ 10⁵

Read input from standard input and print the answer to standard output. Your code is judged against 3 test cases, most of them hidden.

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