1 #include<iostream>
 2 #include<stdio.h>
 3 #include<stdlib.h> 
 4 #include<time.h>
 5 using namespace std;
 6 
 7 int main(){
 8     int start=clock();
 9 
10     std::ios::sync_with_stdio(false);
11     for (int i=0;i<10000000;i++){
12         int t;
13        cin>>t;
14     }
15     printf("%.3lf\n",double(clock()-start)/CLOCKS_PER_SEC);
16     return 0;
17 }