#include using namespace std; typedef unsigned long long ull; typedef long long ll; typedef pair pii; typedef pair pll; typedef pair pdd; //const ull mod = 1e9 + 7; const ll mod = 1e9 + 7; #define REP(i,n) for(int i=0;i<(int)n;++i) // debug #define dump(x) cerr << #x << " = " << (x) << endl; #define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl; template ostream& operator << (ostream& os, const pair v){ os << "(" << v.first << ", " << v.second << ")"; return os; } template ostream& operator << (ostream& os, const vector v){ for(int i = 0; i < (int)v.size(); i++){if(i > 0){os << " ";} os << v[i];} return os; } template ostream& operator << (ostream& os, const vector> v){ for(int i = 0; i < (int)v.size(); i++){if(i > 0){os << endl;} os << v[i];} return os; } template bool chmax(T &a, const T &b) { if (a bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; } // conversion number to bit string num2bit(ll num, ll len){ string bit = ""; REP(i, len){ bit += char('0'+(num>>i & 1)); } return bit; } int main(){ cin.tie(0); ios::sync_with_stdio(false); ll N, K; cin >> N >> K; if(N