Task: Program Execution
Input (English): 8, 15, ['J', '725', 'A', 'n', 'w', 'b', 'd', '2497', '4673', 'J', 'z', '7437', '7281', 'z', '3239', 'q', 'u', '4187', '55', 'x', '1843']
Output (English): 3239z72817437zJ46732497