SDUT 1013 A+B for Input-Output Practice (IV)

Problem Description

Your task is to Calculate the sum of some integers.

Input

Input contains multiple test cases. Each test case contains a integer N, and then N integers follow in the same line. A test case starting with 0 terminates the input and this test case is not to be processed.

Output

For each group of input integers you should output their sum in one line, and with one line of output for each line in input.

Example Input

4 1 2 3 45 1 2 3 4 50

Example Output

10
15
答案：
#include<iostream>//#include<stdio.h>#include<iomanip>using namespace std;int main() {//int n, x, sum;//C语言版本//while (scanf("%d", &n) && n != 0)//{//sum = 0;//while (n--)//{//scanf("%d", &x);//sum += x;//}//cout<< sum <<endl;//}int n, x, sum;//C++版本。while (cin >> n && n != 0)//可以看出这种输入格式时，Cin也可以做到。{sum = 0;while (n--){cin >> x;sum += x;}cout<< sum <<endl;}return 0;}