Task: Program Execution
Input (English): 4, 21, ['f', 'B', '135', 'j', 'H', '7959', '5793', '5839', 'O', '7597', 'B', 'I', 'Z', 'H', '5995', 'k', '7335', '2517', 'E', 'p', '6415']
Output (English): 5146pE71525337k5995HZIB7957O938539759597Hj