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Hunan Normal University
College of Information Science and Engineering
A+B for Input-Output Practice (IV)
Time Limit: 1000ms, Special Time Limit:2500ms, Memory Limit:32768KB
Total submit users: 655, Accepted users: 598
Problem 10364 : No special judgement
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.

Sample Input
4 1 2 3 4
5 1 2 3 4 5
0 
Sample Output
10
15
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