#P661C. Array Sum

Array Sum

No submission language available for this problem.

Description

You are given an array of integers. Calculate the sum of its elements.

The i-th line of the input contains an integer ai (0 ≤ a ≤ 1000) — the i-th element of the array. The size of the array is between 1 and 10, inclusive. Note that the size of the array is not given explicitly!

Output a single integer — the sum of the elements of the array.

Input

The i-th line of the input contains an integer ai (0 ≤ a ≤ 1000) — the i-th element of the array. The size of the array is between 1 and 10, inclusive. Note that the size of the array is not given explicitly!

Output

Output a single integer — the sum of the elements of the array.

Samples

2
15
110
3

130

90
0
21
331
45

487