Task: Program Execution
Input (English): 4645, d, O, y, u, C, z, 6591, I, 2917, W, e, n, 4877, 6077, 7553, R, 7139, 1863, 7923, 3315
Output (English): 4645, 6591, 2917, 4877, 6077, 7553, 7139, 1863, 7923, 3315