Task: Program Execution
Input (English): 9921, j, 8599, K, G, 3373, 253, 2279, k, 6925, 357, C, D, 687, 6355, 8881, 7387, W, 7905, u, 9163, 6973, 1371, 1535
Output (English): 1, 3, 6, 7, 8, 10, 11, 14, 15, 16, 17, 19, 21, 22, 23, 24