n=int(input())
nums = []
for i in range(0,n-1):
value = int(input())
nums.append(value)
def custom_sum(j):
total = 0
for l in range(1, j+1):
for x in range(1, j+2):
if l % x != 0:
total += l
break
return total
for i in range(0,n-1):
result = custom_sum(nums[i])
print(result)