#include <iostream>

using namespace std;

int main() {
    int m1, c1;
    int m2, c2;
    int m3, c3;
    int bucket = 1;

  cin >> c1 >> m1;
  // read in row 2: TODO
  // read in row 3: TODO

  // TODO: for loop to repeat this 100 times
  // (repeat everything 33 times, then do pour bucket 1 into 2 an extra time)

  // pour bucket 1 into bucket 2
  m2 = m1 + m2;
  m1 = 0;

  if (m2 > c2) {
    // uh oh we overflowed!
    int move_back = m2 - c2;
    m1 = m1 + move_back;
    m2 = m2 - move_back;
  }

  // pour bucket 2 into bucket 3: TODO
  // pour bucket 3 into bucket 1: TODO

}