#include <iostream>
#include <iomanip>
#include <cmath>
#include <algorithm>
#include <numeric>
#include <string>
#include <vector>
#include <deque>
#include <queue> 
#define ll long long
const int N = 10e5 + 5 ;
const double pi = 3.14;
using namespace std;
int main()
{
   ll a , b , c  , d;
   float r ;
   cin >> a >> b >> c;
   r = (a * b) / c;
   d = r ;
   if(d != r)
   cout << "double" << '\n';
   else if(r <= 2147483647)
   cout << "int" << '\n';
   else
   cout << "long long" << '\n';
   return 0;
 
 
 
}

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