Task: Program Execution
Input (English): 17, 23, ['6595', 'k', 'k', '2565', 'U', 't', 'E', '1081', '1815', '7523', '953', '4435', '7025', 'L', '4357', '7849', '7959', '1663', 'R', 'X', '4397', '5427', '7727']
Output (English): 727772457934XR36619597