import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

t = int(input())

for i in range(t): 
  n = int(input())
  ans = (1+n)*n
  print(ans)