###
We process the digits of the number - 2

#### Problem

Given a natural number

` N`

. Determine the sum of its digits greater than

`z`

. If there are no such digits in the number, print 0.

**Input**
Enter two numbers separated by a space, first a natural number

`N`

, then -

`z`

(

\(0<=z<=9\) ).

**Imprint**
Print the answer to the problem.

##### Examples

Запрещенные операторы: `break`

; `list`

; `[`