Task: Program Execution
Input (English): 6, 12, ['S', 'X', '2143', 'o', '8573', 'R', '6821', 'F', 'a', '4679', '8875', '3567', '4415', 'r', '2823', 'V', '2017', '9113']
Output (English): 356788754679aF6821R