Task: Program Execution
Input (English): 1, 6, ['7347', 'u', '7957', 'l', '2969', 'e', 'q', '8549', '2257', '9727', 'n', '155', '4047', '7811', 'u', 'L', '2693', '17', 'o', '3057']
Output (English): e9692l7597u7437