#include <iostream>
int main()
{
int sum=0,value;
//read till end-of-file,calculating a running total of all values read
while (std::cin>>value)
sum+=value; //equivalent to sum=sum+value
std::cout<<"sum is:"<<sum<<std::endl;
return 0;
}
#include <iostream>
int main()
{
int sum=0,value;
//read till end-of-file,calculating a running total of all values read
while (std::cin>>value)
sum+=value; //equivalent to sum=sum+value
std::cout<<"sum is:"<<sum<<std::endl;
return 0;
}