/* 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
	{
		int[] groupMin = new int[]{0, 10, 20};
		int[] groupMax = new int[]{10, 20, 9999};
 
		int[] ages = new int[]{ 1, 2, 3, 10, 12, 76, 56, 89 };
 
		int targetGroup = 1;
		int count = 0;
		for( int age : ages ){
			if( age >= groupMin[targetGroup] && age < groupMax[targetGroup] ){
				count++;
			}
		}
 
		System.out.println("Group " + targetGroup + " range is " + 
						groupMin[targetGroup] + " - " + groupMax[targetGroup]);
		System.out.println("Count: " + count);
	}
}

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