Task: Program Execution
Input (English): u, 9271, 2619, U, e, l, 9017, T, 2469, 8563, n, y, 9423, 7767, 4531, 4925, 4627, y, 9303, 4245, w
Output (English): u, U, e, l, T, n, y, y, w, 9271, 2619, 9017, 2469, 8563, 9423, 7767, 4531, 4925, 4627, 9303, 4245