Task: Program Execution
Input (English): 13, 19, ['4201', 'F', 's', '3651', '4155', '829', '9473', '3847', 'b', '1071', 'U', 'n', 'i', '6093', '6373', 'u', '4841', '2887', 'Y', 'N']
Output (English): Y28874841u63736093i