Task: Program Execution
Input (English): rUBQATGPBXRiJASKBSmXSbXNmxQMWljofZOuXhltsXrgqaWVcLhe, YfCgcsFNjSfzASKBSmXSbXNmxQMWljofUbBBOLmjJsNmfKVnb
Output (English): rUBQATGPBXRiJabbfjklmmmnoqssswxxxZOuXhltsXrgqaWVcLhe, YfCgcsFNjSfzabbfjklmmmnoqssswxxxUbBBOLmjJsNmfKVnb