Task: Program Execution
Input (English): 3, 10, ['l', '2767', '857', '8453', '8487', 'C', 'P', '6815', '3293', '915', '5695', 'y', 'd', '239', '2897', '4011', '4497', '6473', 'S', '4497', '6033']
Output (English): 857, d