#include <iostream>
#include <vector>
#include <numeric>
using namespace std;
 
int main() {
	long long noOfways =0;
	auto dist =0;
	vector<int> noChocolets {2,5,8,12,4,2,13};
 
	for(auto iter = noChocolets.begin()+1;iter!=noChocolets.end();iter++)
	{   
		dist+=*(iter)-*(iter-1);
		noOfways+= dist;
	}
	cout <<noOfways << endl;
 
	dist =0;
	noOfways =0;
	accumulate(noChocolets.begin()+1, noChocolets.end(), noChocolets[0],
		[&](long long left, long long right){
			dist += right-left;
			noOfways+= dist;
			return right;
		});
	cout <<noOfways;
	return 0;
}

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