Changing the value of a variable in every iteration using python : <p>Suppose 
a=0
b=a+5
print b</p>

<p>I want to update the value of variable <strong>a</strong> five times. The initial value is zero. So for the next five iterations the value of <strong>a</strong> should be updated as: 10,25,50,75 and 100.</p>
