Task: Program Execution
Input (English): 3, 23, ['n', '9909', 't', 'u', 'x', '1987', '5191', 'r', '7591', '5361', 't', '5119', '2557', '8519', 'b', '1343', '2793', 'R', 'F', 'e', '3813', 'I', '2145']
Output (English): 5412I3183eFR39723431b915875529115t16351957r19157891xut