ur>0 vgenan ehema hadenna vr ,v r+1 thoraganna onane machan
so... saralava kiyanavann oya ur>1 nan Vr - Vr-1 ganna ona..ethakota thama Ur>0 vene mak nisada Vr> Vr-1 hinda
barivelavath Ur<1 (baga sankyavak vagenan) Vr - V r+1 ganna ona
ethkota venne mekai Vr < V+1 ne.. ethakota oya parimeya...