Task: Program Execution
Input (English): 7703, x, H, X, 1235, l, 6439, Y, 9555, i, O, N, 655, v, v, 9853, m, 3101, t, 9543, 945, z
Output (English): 7703, 1235, 6439, 9555, 655, 9853, 3101, 9543, 945