Task: Program Execution
Input (English): 18, 19, ['X', '8641', '7457', '4489', '3891', 'f', 'Z', 'X', 'i', '9459', '6501', '2183', '2343', '2889', '7311', '3051', '7091', 'R', 'i', 'K']
Output (English): R, i