Task: Program Execution
Input (English): 2, 20, ['v', 'K', '6509', 'Q', '8187', 'N', 'g', '357', '2943', 'e', 'Z', 'W', 'w', '5945', '3201', 'R', 'V', 's', '3423', '3987', '3717']
Output (English): K6509Q8187Ng3572943eZWw59453201RVs34233987