Sum of even numbers from a to b
You will be given two numbers a and b.
Calculate and show the sum of even numbers from a until b.
Input specification
You will be given the two integers a and b where 1 ≤ a < b ≤
5000
Output specification
Show the sum of even numbers from a to b.
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Sample Input I
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Sample Input II
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4 10
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2 28
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Sample Output I
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Sample Output II
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28
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210
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Для отправки решений необходимо