A14784. Div. 7

You are given an integer $n$ . You have to change the minimum number of digits in it in such a way that the resulting number does not have any leading zeroes and is divisible by $7$ .

If there are multiple ways to do it, print any of them. If the given number is already divisible by $7$ , leave it unchanged.

The first line contains one integer $t$ ( $1 \le t \le 990$ ) — the number of test cases.

Then the test cases follow, each test case consists of one line containing one integer $n$ ( $10 \le n \le 999$ ).

For each test case, print one integer without any leading zeroes — the result of your changes (i. e. the integer that is divisible by $7$ and can be obtained by changing the minimum possible number of digits in $n$ ).

If there are multiple ways to apply changes, print any resulting number. If the given number is already divisible by $7$ , just print it.

In the first test case of the example, $42$ is already divisible by $7$ , so there's no need to change it.

In the second test case of the example, there are multiple answers — $28$ , $21$ or $63$ .

In the third test case of the example, other possible answers are $357$ , $371$ and $378$ . Note that you cannot print $077$ or $77$ .