#include <iostream>
using namespace std;

const int MAX_SIZE = 100;
const int TEN = 10;

bool hasSixDigits(int n) {
    int numDigits = 0;
    while (n) {
        ++numDigits;
        n /= TEN;
    }
    return numDigits == 6;
}

bool isDistinct(int currentNum, int numbersRead[], int currentPos) {
    for (int i = currentPos - 1; i >= 0; --i) {
        if (currentNum  == numbersRead[i]) {
            return false;
        }
    }
    return true;
}

int main() {
    int numbersRead[MAX_SIZE], n;
    cin >> n;
    int totalSum = 0, validNumbs = 0;
    for (int i = 0; i < n; ++i) { 
        cin >> numbersRead[i];
        if (isDistinct(numbersRead[i], numbersRead, i)) {
            totalSum += numbersRead[i];
            validNumbs += hasSixDigits(numbersRead[i]);
        }
    }
    if (validNumbs < 2) {
        cout << "EROARE";
    } else {
        cout << totalSum;
    }
    
    return 0;
}