Task: Program Execution
Input (English): 15, ['K', '9767', 'W', 'y', 'i', '7917', 'm', '9683', '2113', '3989', 'K', '1395', 'm', '1869', '1593', 'p', 'T', 'f', 'r', '9995', 'p', '8497', 'T', 'w', '1637', 'e', 'n', '6623', 'X', '8353', 'U', 'a', '139', 'u', '3327', '9221', '931', '1885', '4381']
Output (English): K, p, U