Task: Program Execution
Input (English): 20, ['X', 'H', '5409', 'n', 'x', '611', 'Y', 'H', 'R', 'd', '7139', '3607', '4011', '1187', '4021', 'H', 'Y', 'F', '5077', '663', 'h', 'q', 'U', 't', '813', '1175', '93', '8361', '671', 'F', '9947', '2945', 'c', '1445', '6277', 'K', 'm', 'v', 'c', 'x']
Output (English): X, h