class Trac:
    def __init__(self, rotation, position):
        self.__position = position
        self.__rotation = rotation

    def get_symbol(self):
        if self.__rotation == 'S':
            return 'v'
        elif self.__rotation == 'N':
            return '^'
        elif self.__rotation == 'E':
            return '>'
        else:
            return '<'

    def set_rotation(self, rotation):
        self.__rotation = rotation

    def set_position(self, position):
        self.__position[0] = position[0]
        self.__position[1] = position[1]

    def get_position(self):
        return self.__position

    def get_rotation(self):
        return self.__rotation

    def move(self):
        x = self.__position[0]
        y = self.__position[1]
        if self.__rotation == 'N':
            self.__position = (x - 1, y)
        elif self.__rotation == 'S':
            self.__position = (x + 1, y)
        elif self.__rotation == 'W':
            self.__position = (x, y - 1)
        else:
            self.__position = (x, y + 1)