Task: Program Execution
Input (English): 53, 5465, 931, 9657, u, 3253, l, 2447, 3655, h, 7347, 1883, z, q, z, 565, 1237, 6679, 5719, 2539, 2433, q, 6863, 4319
Output (English): h, l, q, u, z