//?template?function?with?const?reference?parameters?
//?to?compute?an?expression

#include

using?namespace?std;

template
T?abc（const?T&?a?const?T&?b?const?T&?c）
{
???return?a?+?b?*?c;
}

int?main（）
{
???cout?<???return?0;
}