Task: Program Execution
Input (English): 1, 14, ['2747', 'a', '7501', '4799', '105', '235', '7027', '655', 'z', '987', '9567', 'F', 'C', '7785', '6165', '2485', 'P', 'k']
Output (English): 7785CF9567987z655702723510547997501a2747