**Write a Python program that accepts an integer n and computes the value of n+nn+nnn**

*Sample value of n is *7*
Expected Result : *861

a = int(input("Input an integer : ")) n1 = int( "%s" % a ) n2 = int( "%s%s" % (a,a) ) n3 = int( "%s%s%s" % (a,a,a) ) print (n1+n2+n3)

**Result**

Write a Python program that accepts an integer n and computes the value of n+nn+nnn