PLS HELP ME ! What's the dry running program of this Input :
// Java program to illustrate for loop.
class forLoopDemo {

public static void main(String args[]){

int sum = 0;

// for loop begins
// and runs till x <= 20
for (int x = 1; x <= 20; x++) {

sum = sum + x;

}
System. out. println("Sum: " + sum);

}

}
Output :
Sum : 210