namespace schultz {
	typedef float flop;
	 template < typename T >
	    inline typeof(((T) (*((T *) (0)))) *
			  ((T) (*((T *) (0))))) square(const T & x) {
	} template < typename T > struct vector2 {
		inline
		    typeof(((typeof
			     (((T) (*((T *) (0)))) *
			      ((T) (*((T *) (0)))))) (*((typeof
							 (((T) (*((T *) (0)))) *
							  ((T) (*((T *) (0)))))
							 *) (0)))) +
			   ((typeof
			     (((T) (*((T *) (0)))) *
			      ((T) (*((T *) (0)))))) (*((typeof
							 (((T) (*((T *) (0)))) *
							  ((T) (*((T *) (0)))))
							 *) (0)))))
		    operator *(const vector2 < T > &v) const {
	}};
	struct circle {
		vector2 < flop > velocity;
	};
	flop proj(const circle & C, vector2 < flop > P) {
		flop c = square(C.velocity);
	}
}