Task: Program Execution
Input (English): 2, 18, ['e', 'b', '9687', 'C', '4177', 'I', 'E', '6403', '4467', 'c', 'S', 'k', '6281', 'B', 'P', 'P', 'k', 'h', 'p']
Output (English): hkPPB1826kSc76443046EI7714C7869b