Task: Program Execution
Input (English): 2, ['4155', 'P', 'W', '1673', '3989', '7721', '8463', '8445', 'T', 'o', 'k', 'Y', '9557', '8463', 'U', '7389', '4283', '3463', 'j', '2067', 'D', '7393', '3023', '9227', '541', '6763', '8933']
Output (English): 4155, P