We define an integer x as a “good integer" if x is divisible by7 but not divisible by 5. For example, 14 and 21 are good integers,but 5 and 35 are not. Given an integer n, please find the minimum“good integer” m such that m>=n.

Input

Each test case has only one line containing an integer n(1<=n<=1000).

Output

For each test case output one line containing one integer,indicating the value of m.

Sample Input

1

7

20

30

Sample Output

7

7

21

42

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