System.out.println("a.nil() == " + a.nil());
System.out.println("new BitSet().nil() == " + (new BitSet()).nil());
System.out.println("new BitSet().degree() == " + (new BitSet()).degree());
System.out.println("BitSet.of(1).degree() == " + BitSet.of(1).degree());
System.out.println("a.degree() == " + a.degree());
System.out.println("b.subset(a) == " + b.subset(a));
System.out.println("a.subset(b) == " + a.subset(b));
System.out.println("new BitSet().subset(a) == " + (new BitSet()).subset(a));
System.out.println("b.or(BitSet.of(4)).subset(a) == " + b.or(BitSet.of(4)).subset(a));
System.out.println("b.or(BitSet.of(5)).subset(a) == " + b.or(BitSet.of(5)).subset(a));
System.out.println("BitSet.of(85) == " + BitSet.of(85));