Task: Program Execution
Input (English): u, 6313, 7937, x, 5901, 9125, x, T, 8815, c, c, 8443, 9757, 1567, Y, C, T, 6603, 4201, 6219, j, c, 8371
Output (English): 1, 4, 7, 8, 10, 11, 15, 16, 17, 21, 22