Task: Program Execution
Input (English): 3, 7, ['e', '9227', 'M', '7421', 'j', 'D', '2007', 'W', '4425', '825', '1739', '8957', '4647', 'o', '2189', 'J', '7979', '9553', '4037', 'j', '7997', 'u', 'o', '9753']
Output (English): M, 7421, j, D, 2007