#!/usr/bin/env python3

import sys
input=sys.stdin.readline

n,d=map(int,input().split())
arr=list(map(int,input().split()))
ans=[0]
for i in range(n-1):
    ans.append(ans[-1]+arr[i])
for i in range(1,n):
    if ans[i]-ans[i-1]<d:
        ans[i]=ans[i-1]+d
print(*ans)