Task: Program Execution
Input (English): y, B, Q, 6231, 5869, 4913, 4927, 7833, W, 4415, Q, X, 1469, G, 3749, 1391, k, 5609, 9153, 9419, Z, B, 5949, 4639
Output (English): y, B, Q, W, Q, X, G, k, Z, B, 6231, 5869, 4913, 4927, 7833, 4415, 1469, 3749, 1391, 5609, 9153, 9419, 5949, 4639