private boolean jj_3R_55() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_scan_token(40)) {
    jj_scanpos = xsp;
    if (jj_scan_token(43)) return true;
    }
    while (true) {
      xsp = jj_scanpos;
      if (jj_scan_token(41)) { jj_scanpos = xsp; break; }
    }
    return false;
  }