#include<bits/stdc++.h> using namespace std; int a[31]; int main() { int nct=0; int i=1,ss=0; while(nct<15){ if(a[i] == 0){ ss++; if(ss==9){ a[i] = 1; nct++; ss=0; } } i++; if(i>30) i=1; } for(int j=1;j<=30;j++){ if(a[j]==0){ cout<<j<<" "; } } }