Task: Program Execution
Input (English): 3607, 3027, 9247, 3515, m, 487, M, 8673, u, 145, 5275, 1249, l, 4991, R, Y, k, 5385, 5261, 983, I
Output (English): 5, 7, 9, 13, 15, 16, 17, 21