Task: Program Execution
Input (English): 4, 19, ['9869', 'M', '6439', '9799', '7941', '3797', '541', 'I', '943', '7835', 'i', 'O', 'Y', 'V', 'n', 'v', 'C', '1735', 'r', 'i', '8733', '3887', '6589']
Output (English): r5371CvnVYOi5387349I145797314979979