Bruce is given a multiset of integers. Bruce defines to be the set of factors of , including and . Bruce would like to know . That is, Bruce would like to know the common factors that exists in all elements in .
Input Specification
The first line will contain the integer .
The second line will contain integers, .
Output Specification
Output the factors that are common to all elements in , one factor per line, in sorted order.
Subtasks
For 5/15 of the points, .
Sample Input
4
28 12 8 20
Sample Output
1
2
4
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