This program checks if a number entered by the user is Armstrong number or Not.

Armstrong number is a number that is equal to the sum of cubes of its digits. For example :

153=1*1*1+5*5*5+3*3*3$\mathrm{ 1}53=1*1*1+5*5*5+3*3*3$

1634=1*1*1*1+6*6*6*6+3*3*3*3+4*4*4*4$\mathrm{ 1}634=1*1*1*1+6*6*6*6+3*3*3*3+4*4*4*4$

What are the missing statements for the program to do its job?