Task: Program Execution
Input (English): 6761, Z, X, 4665, P, 1469, 5623, K, 8443, 8997, 8889, m, 5103, 2429, 5935, 4303, 391, L, e, 4567
Output (English): 1, 4, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 20