Task: Program Execution
Input (English): 9, 11, ['x', 'I', '9253', 'r', '5063', '5519', 'M', 'Z', '9913', 'y', 'x', 'l', 'v', 'p', 'H', 'U', '9417', '1107', '9509', '2153', '2149', '5577', 'P', 'w']
Output (English): xy9913