/* */
#include <iostream>  
#include <cstdlib>
using namespace std;
int main(int argc, char *argv[])
{  int N=0, num, n_neg=0, sum_neg=0, left=0,mid=0,right=0, flag=0;
   double ave_neg;
   cout<<"give a num= ?"; 
   cin>>num;
   while (num != 0) {
    N++;
    if (num < 0) 
    {
      n_neg++;
      sum_neg+=num;
    }
    left=mid;mid=right;right=num;
    if ((right==mid+1) && (mid==left+1)) {
         cout<<left<<" "<<mid<<" "<<right<<endl; flag=1;}
    cout<<"give a num= ?"; 
    cin>>num;
   }
   if (N>0) {
     if (n_neg>0) {
       ave_neg=(double) sum_neg/n_neg;
       cout<<"There are "<<n_neg<<" negatives and AVERAGE negative is "<<ave_neg<<endl; }
     else cout<<"NO negative number given"<<endl; 
     if (flag==0) cout<<"NO sequence triplets given"<<endl;}
   else cout<<"NO numbers given"<<endl;
   system("PAUSE");
   return 0;
}