Task: Program Execution
Input (English): 15, ['6583', '8731', '7217', 'u', 'i', '1395', 'W', '5451', '6703', '5281', '919', 'X', '6951', '603', 'P', '2663', 'w', 'M', 'Y', 'f', 'T', 'R', 'x', '2471', '8627', '6867', 'u', 'e', 'X', 'u', 'S', '7765', 'e', 'U', 'X', '2141', '3765', '9571', 'Z']
Output (English): 6583, 2663, S