Task: Program Execution
Input (English): 4, 18, ['q', '3455', 'N', 'x', 'D', 'b', '2067', '1913', '9687', '3813', '6543', '5983', 'W', '2991', '1945', '3841', 'M', 'j']
Output (English): jM148354911992W389534563183786931917602bDx