Task: Program Execution
Input (English): U, 503, 2917, b, C, 733, q, 3547, 1529, R, 2287, l, D, Z, M, 8711, m, K, 6679, 8673, U, W, 6227
Output (English): 503, 2917, 733, 3547, 1529, 2287, 8711, 6679, 8673, 6227