+++CifreFrecv

#include <iostream>
#include <fstream>
using namespace std;
ifstream cin("cifrefrecv.in");
ofstream cout("cfrefrecv.out");
int f[10] ;
int main()
{
    int a;
    while(cin>>a)
    {
        if(a==2 || a==3 || a==5 || a==7)
            f[a]++;
    }
    if(f[7])
        cout<<7<<" "<<f[7];
    else if(f[5])
        cout<<5<<" "<<f[5];
    else if(f[3])
        cout<<3<<" "<<f[3];
    else if(f[2])
        cout<<2<<" "<<f[2];

    return 0;
}