func_code_string: #include <bits/stdc++.h>   using namespace std;   template <class htpe, class cmp>   using heap = priority_queue<htpe, vector<htpe>, cmp>;   template <class htpe>   using min_heap = heap<htpe, greater<htpe> >;   template <class htpe>   using max_heap = heap<htpe, less<htpe> >;   const int INF = 1791791791;   const long long INFLL = 1791791791791791791ll;   bool query(int x, int y) {     cout << 1 <<     << x <<     << y << endl;     cout.flush();     string s;     cin >> s;     return s ==  TAK ;   }   bool is_two_answers(int a, int b) { return query(a, b) && query(b, a); }   int find_on_segment(int l, int r, int tr) {     l--;     while (l < r - 1) {       int mid = (l + r + tr) >> 1;       if (!query(mid, mid + 1))         l = mid;       else         r = mid;     }     return r;   }   int main() {     int n, k;     cin >> n >> k;     int a = find_on_segment(1, n, 0);     int b = find_on_segment(a + 1, n, 1);     if (a + 1 > n || !is_two_answers(a, b)) b = find_on_segment(1, a - 1, 0);     cout << 2 <<     << a <<     << b << endl;     cout.flush();     return 0;   }   