Task: Program Execution
Input (English): 3903, 1461, f, F, U, c, 1467, c, y, K, 7701, 5339, A, b, 5499, 6179, W, k, 1577
Output (English): 3903, 1461, 1467, 7701, 5339, 5499, 6179, 1577