import fj.Unit;
import fj.F;
import fj.F4;
import fj.pre.Semigroup;
import fj.data.NonEmptyList;
import fj.data.Validation;
import static fj.data.Validation.validation;

class X {
  Either<Throwable, Unit> a;
  Either<Throwable, Unit> b;
  Either<Throwable, Unit> c;
  Either<Throwable, Unit> d;
  Either<Throwable, Unit> e;
  Either<Throwable, Unit> f;
  ////
  Either<Throwable, Unit> g;
  Either<Throwable, Unit> h;
  Either<Throwable, Unit> i;

  Either<Throwable, Unit> t1() {
    return a.left().sequence(b).left().sequence(c).left().sequence(d).left().sequence(e).left().sequence(f);
  }

  Validation<NonEmptyList<Throwable>, Unit> t2() {
    F<Unit, F<Unit, F<Unit, F<Unit, Unit>>>> t = fj.Function.curry(new F4<Unit, Unit, Unit, Unit, Unit>() {
      public Unit f(Unit unit, Unit unit1, Unit unit2, Unit unit3) {
        return Unit.unit();
      }
    });
    return validation(t1()).nel().accumulate(Semigroup.<Throwable>nonEmptyListSemigroup(), 
            Validation.<Throwable, Unit>validation(g).nel(), 
            Validation.<Throwable, Unit>validation(h).nel(), 
            Validation.<Throwable, Unit>validation(i).nel(), t);
  }
}