#include using namespace std; int n, start, naux, rasp, cnt, nrbs, bus[100001], i, rp; int main() { scanf("%d", &n); start=1; naux=n; while(cnt!=n) { if(naux<=start) { cnt++; nrbs++; bus[nrbs]=start; start++; naux=n; continue; } printf("1 %d %d\n", start, naux); fflush(stdout); scanf("%d", &rasp); if(rasp==0) naux=(start+naux)/2; if(rasp==1) { cnt+=(naux-start+1); nrbs++; bus[nrbs]=start; start=naux+1; naux=n; } } printf("2 %d ", nrbs); fflush(stdout); for(i=1; i<=nrbs; i++) { printf("%d ", bus[i]); fflush(stdout); } }