#include <iostream>
#include <fstream>

using namespace std;

ifstream f("bac.in");

int main()
{
    int x,max1=0,max2=0;
    while(f>>x)
    {
        if(x%10%3==0)
            if(x>max2)
                {
                    max1=max2;
                    max2=x;
                }
            else
                if(x>max1)
                    max1=x;
    }
    cout<<max1<<" "<<max2;
    return 0;
}