Task: Program Execution
Input (English): 23, 23, ['1997', 'C', 'W', '7543', '2811', '4137', '1143', 'b', 'O', '3003', 'z', 'k', 'F', 'E', 'L', '767', '8043', '305', '2915', 'n', 'P', 'u', 'R', '87', '1015', '6117', '2673', '6059', 'Y']
Output (English): R