URI 1158 Solution

#include <iostream>

#include<iomanip>

using namespace std;

int main()

{

    int N,X,Y;

    cin>>N;

    while(N>0)

    {

        cin>>X>>Y;

        int count=0,sum=0;

        for(int i=X; count<Y; i++ )

        {

            if(i%2!=0)

            {

                sum+=i;

                count++;

            }

        }

        cout<<sum<<endl;

        N--;

    }

    return 0;

}