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Devu And His Brother

<a href="https://codeforces.com/problemset/problem/439/D" target="_blank"><i class="fa fa-external-link" aria-hidden="true"> Link -> Devu and his Brother</i></a>

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Devu And His Brother

medium

Constraints

Check the link

Format

Input

Check the link

Output

Check the link

Example

Sample Input

2 2 2 3 3 5

Sample Output

3

Discussions

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