#include<bits/stdc++.h>
using namespace std;
void init_make(){
srand(time(NULL));
}
void make_in(){
freopen("/*填充文件名*/.in","w",stdout);
}
void make_out(){
freopen("/*填充文件名*/.in","r",stdin);
freopen("/*填充文件名*/.out","w",stdout);
}
int main(){
init_make();
make_in();
make_out();
return 0;
}