#include <iostream>

using namespace std;

int main()
{
    int aux,x,i,j,n,a,b,v[100],s=0;

    cout<<"n=";cin>>n;
    cout<<"a=";cin>>a;
    cout<<"b=";cin>>b;

    j=0;
    cout<<"introducetii pokemonii:"<<endl;
    for(i=0;i<n;i++)
        {cin>>x;
         if(x<b)
            {v[j]=x;
            j++;
            }
        }

    n=j;

    for(i=0;i<n;i++)
        cout<<v[i]<<" ";


   for(i=0;i<n;i++)
     for(j=i+1;j<n;j++)
       if(v[i]>v[j])
        {aux=v[i];
         v[i]=v[j];
         v[j]=aux;
        }

aux=0;
      for(i=0;i<n;i++)
         for(j=i+1;j<n;j++)
      {    s=v[i]+v[j];
            if((s>=a)&&(s<=b))
                aux++;

                if(s>b)
                    break;
      }
      cout<<endl;
      cout<<"R: "<<aux;
}