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public Object evaluate(Stack values) throws Exception { super.evaluate(values); if(values.size()<2) throw new NeedMoreValuesException("2", ""+values.size()); return null; }
public Object evaluate(Stack values) throws Exception { super.evaluate(values); if(values.size()<1) throw new NeedMoreValuesException("1", ""+values.size()); return null; }
public Object evaluate(Stack values) throws Exception { super.evaluate(values); if(values.size()<3) throw new NeedMoreValuesException("3", ""+values.size()); return null; }