Since Bessie wants the diamonds in the case to be relatively similar in size, she decides that she will not include two diamonds in the case if their sizes differ by more than KK (two diamonds can be displayed together in the case if their sizes differ by exactly KK). Given KK, please help Bessie determine the maximum number of diamonds she can display in the case.
SAMPLE INPUT:
5 3
1
6
4
3
1
SAMPLE OUTPUT:
4