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package algs11;
import stdlib.*;

public class XEuclid {

  static int gcd (int p, int q) {
    if (q == 0) return p;
    int r = p % q;
    return gcd (q, r);
  }

  public static void main (String[] args) {
    StdOut.print (gcd (1231234, 459286792));
  }

}