Task: Program Execution
Input (English): 2157, u, 2303, z, 9375, B, 1355, r, t, Q, 3569, 8765, 1263, L, z, I, 1831, d, 6645
Output (English): u, z, B, r, t, Q, L, z, I, d, 2157, 2303, 9375, 1355, 3569, 8765, 1263, 1831, 6645