Task: Program Execution
Input (English): 13, ['1837', '8557', 'D', '4249', 'T', '1237', 'N', '7615', 'l', '1423', '8949', 'W', '6103', '3233', 'R', 'R', 'k', '7113', 'W', 'I', 'S', '6393', 'u', '4237', '4961', 'g', 'o', '8035', '4289', 'C', 'J', 'M', 'B']
Output (English): 1837, 3233, o