problem 6.cpp

#include<bits/stdc++.h>
using namespace std;

#define pb push_back
#define ll long long int
#define mod 1000000007
#define for1(k,n) for(ll i=k;i<n;i++)
#define for2(k,n) for(ll j=k;j<n;j++)
#define E cout<<endl
#define max 100000
#define matrix  vector <vector <ll>>



int main()
{
#ifndef ONLINE_JUDGE
	clock_t tStart = clock();
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif
	ios_base:: sync_with_stdio(false);
	cin.tie(0);

//////////////////////////////////////start...............
	ll sum1 = 0;
	ll sum2 = 0;

	for (ll i = 1; i <= 100; i++)
	{
		sum1 = sum1 + pow(i, 2);
		sum2 = sum2 + i;
	}
	cout << sum1 << endl;
	cout << sum2 << endl;
	sum2 = sum2 * sum2;
	cout << sum2 - sum1 << endl;







/////////////////////////////end................................... ....
#ifndef ONLINE_JUDGE
	cout << "\nDone in " << (double) clock() / CLOCKS_PER_SEC << "sec" << endl;
#endif
	return 0;

}

//c v a s selecting text or x for selecting cut
//ctrl+d after selecting text to select same type
//ctrl+shift+d for copy and paste the line below it
//ctrl+del to delete a text
//ctrl+left to jump left of line or vice versa
//ctrl+shift+"/"  to comment whole block and vice versa for undo
//ctrl+"/" for commenting a line