/* 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
	{
// 		give s the value 0
int s = 0;
// give k the value 1
int k = 1;
// repeat the two statements while k
// <
// 5:
while (k < 5){
	s = s+k;
	k++;
 
}
System.out.println("s = " + s);
// replace the value of s with s+k
// replace the value of k with k+1
// print s
 
	}
}

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