Task: Program Execution
Input (English): 1, 9, ['1403', 'c', 'k', '1291', '2383', 'x', '6907', 'd', '5601', '6399', 'G', 'g', '8517', 'k', 'B', '349', 'P']
Output (English): 1065d7096x38321921kc3041