import java.io.*;
import java.util.*;

public class SumFromOneTo100
{
	public static void main (String args[])
	{
		final int LOOP_LIMIT = 100;
		int counter = 1;
		int sum = 0;
		
		while ( counter <= LOOP_LIMIT )
		{
			sum += counter;
			++counter;
		}
		
		System.out.println(" The sum is : " + sum);
	}
}