Need a regular expression that should work for below mentioned formats
<ol>
<li>Acceptable Format: &quot;A123bcd456&quot;, &quot;Abcd12345678&quot;, &quot;AAbcdd123456&quot;
</li>
<li>Non-acceptable Format: &quot;AAbbcc123456&quot;, &quot;AAAbbccc1234&quot;, &quot;AAbcdd123444&quot;
</li>
</ol>

Need a regular expression that should work for below mentioned formats

1. **Acceptable Format:** "A123bcd456", "Abcd12345678", "AAbcdd123456"

2. **Non-acceptable Format:** "AAbbcc123456", "AAAbbccc1234", "AAbcdd123444"



Regex for checking "non-repetitive characters not more than 2 consecutive time"

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