Task: Program Execution
Input (English): 3, 18, ['6681', 'Z', '2319', 'I', '5257', 'J', '1491', '5579', 'A', 'z', '2743', 'E', '7599', 'j', '7257', 'd', '4817', '4815', 'H', '2785']
Output (English): 48154817d7257j7599E2743zA55791491J5257I2319