Task: Program Execution
Input (English): 6939 X I 737 f 2921 9409 2361 2403 z w 3909 q J 9031 4649 U a 9315 2125 Q 8119 v L 9073 B 6919 d
Output (English): X, I, f, z, w, q, J, U, a, Q, v, L, B, d