Task: Program Execution
Input (English): 6, 20, ['K', 'B', '1687', '1287', 'm', 'S', '9905', 'e', '6203', 'u', 'r', '5059', '9355', 't', 'N', 'C', '3031', '8467', '5715', '331', 'C', '6683', '263', 'O', 'e', 'h', 'S']
Output (English): S9905e6203ur50599355tNC303184675715331