class No{
	No l,r;
	Object l1 = new object,r1 = new object;
	int v;
	insert(int n){
		if(n < v){
			sync(l1){
				if(l == null){

				}else{

				}
			}
		}else{
			sync(r1){
				if(r == null){

				}else{

				}
			}
		}


	}

}