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* Metrics/AbcSize: Assignment Branch Condition size for main is too high. [37.27/15]
* Metrics/CyclomaticComplexity: Cyclomatic complexity for main is too high. [14/6]
* Metrics/MethodLength: Method has too many lines. [48/10]
* Metrics/PerceivedComplexity: Perceived complexity for main is too high. [15/7]