#include<iostream>
using namespace std;

int main(){
    int N, M, R;
    
    if(!(cin >> N >> M >> R)) {
        cout << "Invalid input";
        return 0;
    }
    if(N <= 0 || M <= 0){
        cout << -1;
        return 0;
    }
    
    int x,inSum = 0, outSum = 0;
    for(int i = 0; i < N; i++){
        cin >> x;
        insum += (x - R);
    }
    for(int i = 0; i < M; i++){
        cin >> x;
        outSum += (x - R);
    }
    if(inSum == outSum)
    cout << " Balanced";
    else
    cout << (inSum - outSum);
    return 0;
}