#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    ifstream fin("nrtri.in");
    ofstream fout("nrtri.out");
    int k;
    fin>>k;
    int s[k+2];
    for(int i=0; i<k; ++i)
        fin>>s[i];

    int p=0;
    for(int i=0; i<k; ++i){
        if(s[i]<=s[i+2] && s[i+1]<=s[i+2])
            if(s[i]+s[i+1]<s[i+2])
                {fout<<s[i]<<" "<<s[i+1]<<" "<<s[i+2]<<"\n";
                    ++p;
                }

        else
            if(s[i]<=s[i+1] && s[i+2] <=s[i+1])
                if(s[i]+s[i+2]<s[i+1]){
                    fout<<s[i]<<" "<<s[i+1]<<" "<<s[i+2]<<"\n";
                    ++p;
                }
        else
            if(s[i+1]<=s[i] && s[i+2]<= s[i])
                if(s[i+1]+s[i+2]<s[i]){
                    fout<<s[i]<<" "<<s[i+1]<<" "<<s[i+2]<<"\n";
                    ++p;
                }

    }

    fout<<p;
    return 0;
}