Bob gives you a list of N strings and a task to solve. The task is to remove all the duplicate strings from the list and print the resulting list of strings in a sorted order.

Input:
The first line contains an integer N. Then next N lines contain a string S_i.

Output:
Print the sorted list.

Constraints:
1 ≤ |N| ≤ 5000
1 ≤ |S_i| ≤ 100