[pbInfo] nrlipsa

#include <fstream>
using namespace std;

ifstream fin("nrlipsa.in");
ofstream fout("nrlipsa.out");

int frecv[1005], sol[2];

int main()
{
    int n;
    while(fin >> n) if(n < 1000) frecv[n]++;
    for(int i = 999, j = 0; i > 99 && j < 2; i--)
        if(!frecv[i]) sol[j++] = i;
    if(!sol[0]|| !sol[1]) fout << "NU";
    else fout << sol[0] << " " << sol[1];
    return 0;
}