PROGRAMMING:Sum of numbers (Cixi, 2006)
Give you an integer n (n ＜ = 2000000000), and find the sum of all the numbers of this number.
###Input format:
The input has only one line, which is an integer n.
###Output format:
The output has only one line, that is, the sum of the digits of this number.
###Input example:
```in
one thousand two hundred and thirty-four
```
###Output example:
```out
ten
```
answer：If there is no answer, please comment
###Input format:
The input has only one line, which is an integer n.
###Output format:
The output has only one line, that is, the sum of the digits of this number.
###Input example:
```in
one thousand two hundred and thirty-four
```
###Output example:
```out
ten
```
answer：If there is no answer, please comment