#include <cstdio>
#include <cstdlib>
#include <set>
#include <map>
#include <cmath>
#include <queue>
#include <stack>
#include <vector>
#include <iostream>
#include <algorithm>
#include <cstring>
#include <string>
#define sqr(x) ((x)*(x))
#define X first
#define Y second
using namespace std;
int a[3000002];
map<char,int> ma;
int main()
{
    int k,i,j;
    #ifndef ONLINE_JUDGE
    freopen("in.txt","r",stdin);
    #endif
    for(i=1;i<=3000000;i++)a[i]=i;
    return 0;
}