Task: Program Execution
Input (English): r, 7299, i, j, 971, U, 5945, 6033, h, 2317, n, Z, a, W, 3113, 3333, 1141, s, A, M, 3937, 811, 5535
Output (English): 1, 3, 4, 6, 9, 11, 12, 13, 14, 18, 19, 20