Task: Program Execution
Input (English): 2, 5, ['8903', '8149', 'x', 't', 't', '6255', '4457', 'Y', '7415', '2779', '771', 'y', 'l', 'C', 'v', 'p', '5403', 'P', '969', 'f', '5741']
Output (English): ttx9418