Task: Program Execution
Input (English): 6, 10, ['5199', '1973', '7139', 'Z', 'i', 's', '9931', 'U', 'N', 'F', 'Y', '9455', 'L', '555', '4953', '7303', 'u', 'A', '7341', '7215', 'W', 'b', '6507', 'w', '6377', '7763', '9475', 'u', 'Y']
Output (English): s9931UNF