include<bits/stdc++.h>

using namespace std;

const int mod = 1e9 + 7; const int inf1 = 1e5 + 5; const int maxn = 6 * 1e6 + 3;

typedef long long ll; typedef long long int lli; typedef double db; typedef long double ld; typedef unsigned long long ull;

define int long long

define pb push_back

define fi first

define se second

define pll pair<long long, long long>

define endl "\n"

define fastflow iosbase::syncwith_stdio(false); cin.tie(NULL); cout.tie(NULL);

void solve(){

return;

} int32_t main(){ fastflow solve(); return 0; }