NrLipsa

/* [A][M][C][B][N] / [K][R][I][P][6][8] */
#include <bits/stdc++.h>
#pragma warning(disable : 4996 4267 4068)
using namespace std;
template<typename type>
using matrix = vector<vector<type>>;
typedef long long ll;
const char sp = ' ', nl = '\n';
const int MOD = 1000000007;

int main() {
    ios::sync_with_stdio(NULL);
    cin.tie(nullptr), cout.tie(nullptr);
    (void)!freopen("nrlipsa.in", "r", stdin);
    (void)!freopen("nrlipsa.out", "w", stdout);
    vector<int> f(10000);
    int n;
    while (cin >> n)
        if (100 <= n && n < 1000)
            f[n] = 1;
    int a(0), b(0);
    for (int i = 999; i > 99; --i) {
        if (!f[i]) {
            if (!a)
                a = i;
            else
                if (!b)
                    b = i;
        }
    }
    if (a && b)
        cout << a << sp << b;
    else
        cout << "NU";
}