Task: Program Execution
Input (English): 14, 21, ['b', 'M', '3409', '2603', 'u', 'p', 'U', '5915', 'M', 't', '8907', '3799', '3085', 'g', 'r', '7963', 'X', 'R', 'Y', '9345', '8847']
Output (English): g, r, 7963, X, R, Y, 9345, 8847