P675 [CF640C] Array Sum
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题目描述

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

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.

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
2 15 110 3
样例输出
130