Task: Program Execution
Input (English): 1, 19, ['N', 'l', 'E', 'k', 'l', 't', 'X', '9725', 'S', '979', 'j', 'U', 'W', 't', 'R', '8821', 'J', '1655', '6561', 'x', '5311']
Output (English): 65611655J8821RtWUj979S9725XtlkElN