Task: Program Execution
Input (English): 7, 28, ['7477', '969', 'X', 'P', 'E', 'C', 'x', 'H', '4763', '9373', '9497', '1537', '253', 'm', '7297', '1941', '7461', '3695', '903', 'X', '7403', '2425', 'k', 'v', 'J', '9347', 'u', 'y', 'l']
Output (English): xH4763937394971537253m7297194174613695903X74032425kvJ9347uy