Task: Program Execution
Input (English): 1, 4, ['1513', 'i', 'M', 'C', '7815', 'X', '3659', 'J', 'M', 'o', '1749', 'p', 'J', 'p', 'T', '1345', 't', 'U', '2417', '6437', '9435']
Output (English): 1513iMC