Task: Program Execution
Input (English): 4, ['507', '5879', '4219', 'S', 'U', '3041', '645', '9625', 'C', 's', 't', '1473', 'k', '617', '5779', 'y', '4341', 'S']
Output (English): 507, 5879, 4219, S, U, 3041, 645, 9625, C, s, t, 1473, k, 617