func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, k;   int query(int x, int y) {     cout <<  1   << x <<     << y << endl;     string ans;     cin >> ans;     if (ans ==  TAK ) return 1;     return 0;   }   int find(int l, int r) {     if (l > r) return -1;     int L = l;     int R = r;     while (L < R) {       int mid = (L + R) / 2;       if (query(mid, mid + 1))         R = mid;       else         L = mid + 1;     }     return L;   }   int main() {     cin >> n >> k;     int x = find(1, n);     int y = find(1, x - 1);     if (x == 1 || !query(y, x)) y = find(x + 1, n);     cout <<  2   << x <<     << y << endl;     return 0;   }   