The list in store app development C++ how to convert to textblock?

I am try to create store apps in visual studio 2013. I have some problem during i am doing list. How to convert en to string value and showing to textblock?

list <string> c1;

//Insert Data
c1.push_back("one");
c1.push_back("two");
c1.push_back("three");
c1.push_back("Four");
c1.push_back("Five");
c1.push_back("Six");
c1.push_back("Seven");
c1.push_back("Eight");
c1.push_back("Nine");
c1.push_back("Ten");

//Random data from list

int RandNum = 0 + (std::rand() % 10);

auto en = c1.begin();