Is possible

Vaibhav is playing a game in a gameathon that is organized by krishna engineering college. he is given an array of n integers a1,a2,a3...,an. In one operation vaibhav can choose two index i and j such that 1<=i,j<=n and each element of array will be greater than 0.then decrement the value of a[i] by 1 and increment the value of a[j] by 1. you are friend of vabhav Can you help vaibhav complete