private void collectInput(final String input) {
			String n, s;
			StringTokenizer st = new StringTokenizer(input,"-");

			n = st.nextToken();
			s = st.nextToken();

			if (students.containsKey(n)) {
				students.get(n).addScore(s);
			} else {
				Student student = new Student(n);
				student.addScore(s);
				students.put(student.getNumber(),student);
			}
		}