PROGRAMMING:Brother Hong

Brother Honghong recently made a small project with a small partner and made a profit of 100 million yuan. After the celebration banquet, brother Honghong was ready to share the money. Brother Honghong thought about it. Business doesn't last for a day, so most of the money in a hundred million still needs to continue to invest. He can't just do it once. This idea has also been recognized by his small partners. The rest of the money does not know the specific value, only know that it is between X million and Y million (because of some mysterious force, the remaining money must be even tens of thousands). Brother Honghong used to be a local tyrant, and he didn't like the small money. So he wanted to give more money to his friends. He decided to divide the money into two prime numbers (programmers like all kinds of special numbers) and take the small one himself. So the question is, how many tens of thousands each of brother Honghong and his little friend? Brother Hong wants to know all the possible points.
###Input format:
Input two integers x, y (6 < = x, x < = y, n < = 100), a group of input.
###Output format:
Output the sum of two prime numbers represented by all even numbers between X and y.
###Input example:
Here is a set of inputs. For example:
```in
8 10
```
###Output example:
The corresponding output is given here. For example:
```out
8=3+5
10=3+7
```







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