Task: Program Execution
Input (English): 19, 19, ['z', 'e', 'C', 'P', '485', 'N', 'j', '8029', 'm', 'X', 'I', '1795', '6699', '4631', '9907', '2509', 'f', '1169', 'C', 'x', '7525']
Output (English): C