Task: Program Execution
Input (English): 7, 12, ['X', 'e', '1663', '6805', '3619', '5783', '6851', '7595', 'k', '2503', 'R', '4043', 'F', '6697', '8523', 'd', '6537', 'Y', '181']
Output (English): 68517595k2503R4043