Task: Program Execution
Input (English): 11, 19, ['F', 's', 'D', 'B', '2137', 'r', '7797', '3379', 'I', 'T', '7857', 'W', '6679', 'l', 'j', '5463', 'j', '759', 'n']
Output (English): 7857W6679lj5463j759n