Task: Program Execution
Input (English): 4, 20, ['9157', 'd', '7573', '4525', 'L', 'b', '3925', 'p', 'n', 'X', 'l', '6131', 'Q', 'A', 'K', '1713', '7895', 'K', '9385', 'a', '2947']
Output (English): a5839K59873171KAQ1316lXnp5293bL5254