For each case, output SUM(n) in one line, followed by a blank line.You may assume the result will求大神帮我彻底点的解释下这句话的含义,要求.

For each case,output A + B in one line. Problem DescriptionHey,welcome to HDOJ(Hangzhou Dianzi University Online Judge).In this problem,your task is to calculate SUM(n) = 1 + 2 + 3 + ...+ n.InputThe input will consist of a series of integers n,one integer per line.OutputFor each case,outpu For each for each compete with /compete for /in case /in case for 编程ACM的一道题There are several test cases.For each test case,standard input contains a line with n ACM水题求解Input contains multiple test cases.Each test case contains a pair of integers a and b,one pair of integers per line.A test case containing 0 0 terminates the input and this test case is not to be processed.For each pair of input intege make the best case for THE CASE FOR CHRIST怎么样 THE CASE FOR MARS怎么样 THE CASE FOR BOOKS怎么样 for fear 和 in case make for each made for each meant for each other, match for each 是prepare the case还是prepare for the case for each teachers 还是of each teachers