Task: Program Execution
Input (English): 11, 21, ['3941', '1169', '2867', 'v', '3439', '1829', 'k', 'P', 'V', 'Z', 'L', '7093', 'E', '1279', '4983', '4677', '6597', 'u', 'E', 'f', 'r', '1635']
Output (English): L7093E1279498346776597uEfr