Task: Program Execution
Input (English): 2, 4, ['a', 'y', '819', '341', 's', 'C', '4773', '2631', '9313', 'f', '8389', '3895', 'a', '563', '125', '9983', 'y', 'Z', '9861', 'o', '3459', 'T', 'g', '3537', '7757', 'W', '3441']
Output (English): 143918y