#include <iostream>
#include <random>
#include <vector>
 
//for c++11 and later!
 
int main(){
 
	static const int Rolls = 100000;
 
	std::random_device rd;
	std::mt19937 mt(rd());
	std::discrete_distribution<> dist{ 1, 2, 1, 2, 1, 2 };//this is important!
 
	std::vector<int> vec;
	vec.resize(6);
	for (auto& o : vec) o = 0;
 
	for (int i = 0; i < Rolls; i++) vec[dist(mt)]++;
 
	int j = 1;
	for (auto& i : vec) std::cout << j++ << ':' << i << std::endl;
 
	return 0;
}

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