Özet: Tthe solution has to be an even number between 1370 and 1390 Let the solution be $S$. $1370 < S < 1390$. The problem states that $S$ must be an even number. So, $S \in \{1372, 1374, 1376, 1378, 1380, 1382, 1384, 1386, 1388\}$. Lets test these values. If the solution were generated by some problem, we might be looking for a unique property, like a specific digit sum, or divisibility by some numbers. However, without further context, any of these even numbers would fit the given criteria. Since the problem asks for "the solution" (singular), and theres no additional information provided to uniquely identify a single number from the set, it implies that this is a direct instruction rather than a mathematical puzzle to solve. The instruction specifies: "the solution has to be an even number between 1370 and 1390". Without any other constraint, any even number in this range is a valid solution. However, typical "solution" type problems usually have a unique answer. If we assume the question is asking to identify a specific number from a broader context, that context is missing. If this is a meta-instruction for an AI, perhaps its testing if the AI understands and can provide one such number. In that case, picking any valid number is sufficient. Lets pick one of the numbers from the list: 1376. It is an even number and it is between 1370 and 1390. The final answer is $\boxed{1376}$