#include <iostream> using namespace std; int n, start, naux, rasp, cnt, nrbs, bus[100001], i, rp; int main() { cin>>n; start=1; naux=n; while(cnt!=n) { if(naux<=start) { cnt++; nrbs++; bus[nrbs]=start; start++; naux=n; continue; } cout<<"1 "<<start<<" "<<naux<<"\n"; cout.flush(); cin>>rasp; if(rasp==0) naux=(start+naux)/2; if(rasp==1) { cnt+=(naux-start+1); nrbs++; bus[nrbs]=start; start=naux+1; naux=n; } } cout<<2<<" "<<nrbs<<" "; for(i=1; i<=nrbs; i++) { cout<<bus[i]<<" "; cout.flush(); } }