Task: Program Execution
Input (English): 1, 2, ['2137', 'b', 'z', 't', '5283', 'D', '3991', 'n', '4121', 'p', 'Q', 'M', 'M', '8847', 'j', 'D']
Output (English): 2137, z, 5283, 3991, 4121, Q, M, j