What's difference between FuncA and FuncB,what does template in FuncA mean? [closed]

The code like this,What's difference between FuncA and FuncB,what does template in FuncA mean? The code can successfully complied.When I run the code,the two function has the same result

class A
{
public:
    typedef int C;
public:
    A()
    {

    }
    int x = 0;
};

void FuncA(A::template C a)
{
     
}

void FuncB(A::C a)
{
    
}