/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        var intSet1 = Set.of( 123 , 1234 , 101 );
        var strValue = "123";
        // Ideone.isValid( strValue , intSet1 );  // Compilation error
        Ideone.isValid( strValue , Set.of( 123 , 1234 , 101) );  // No Compilation error
	}
 
	static <T> boolean isValid( T value , Set<T> range ) {
        return range.contains( value );
    }
}

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