Task: Program Execution
Input (English): 17, 21, ['d', 'O', 'i', '131', 'W', '8287', 'I', '3619', '7155', 'U', '6983', '1451', 'A', 'L', 'M', 'w', 'W', 's', 'p', 'Z', '5439', 'p', 'e', '6677']
Output (English): WspZ5439