Task: Program Execution
Input (English): u, Q, 2897, 1361, 7029, d, 8423, 9641, c, j, 4105, L, C, 8215, 7487, t, r, 6841, 6117
Output (English): 3, 4, 5, 7, 8, 11, 14, 15, 18, 19