Task: Program Execution
Input (English): P, H, p, 8367, O, G, 7557, 8441, 5305, Y, K, 6243, Z, 9461, 3263, 8827, P, 6413, Y, k, 9133, 777, z, v
Output (English): 4, 7, 8, 9, 12, 14, 15, 16, 18, 21, 22