Task: Program Execution
Input (English): 3417, 4369, r, y, 4159, 3531, y, z, 2051, 8555, 4497, V, m, x, 9045, W, n, q, q, k
Output (English): 3417, 4369, 4159, 3531, 2051, 8555, 4497, 9045