#include <bits/stdc++.h>
const int INF = (int)1e9;
const double PI = acos(-1.);
using namespace std;
string s;
long long sumr, suml, need;
int main() {
  cin >> s;
  for (int i = 0; i < s.length(); i++) {
    if (s[i] == '^') need = i;
  }
  for (int i = need - 1; i >= 0; i--) {
    if (s[i] != '=') {
      suml += (s[i] - '0') * (need - i);
    }
  }
  for (int i = need + 1; i < s.length(); i++) {
    if (s[i] != '=') {
      sumr += (s[i] - '0') * (i - need);
    }
  }
  if (sumr == suml)
    cout << "balance";
  else if (suml > sumr)
    cout << "left";
  else
    cout << "right";
  return 0;
}
