Task: Program Execution
Input (English): 4519, 2391, Y, G, l, C, 3419, 6353, 1617, 2867, 5435, 2029, 6517, 1171, 3427, t, C, p, Y, 6763, 2713
Output (English): 3, 4, 5, 6, 16, 17, 18, 19