Hello 
I am doing basic  one program of overflow in which I have a doubt 
Program:  
#include<bits/stdc++.h>
using namespace std;
int main ()
{
long int a=100000;
long int b=100000;
long int c=a*b;
count<<c<<endl;
}

Output : 1410065408
Expected output:  10000000000

What can be problem?