Task: Program Execution
Input (English): 1, 18, ['B', 'H', 'V', 'K', '6891', 'x', 'T', '915', 't', '3591', '149', '205', 'O', 'q', 'e', '1739', 'T', 'r', 'V', '8467', 'o']
Output (English): rT1739eqO2051493591t915Tx6891KVHB