PROGRAMMING:Verify mobile phone number

In order to improve the efficiency of the system and prevent the wrong mobile phone number, the mobile phone number needs to be verified.
The verification rules are as follows:
(1) The length is 11 bits
(2) It consists of numbers 0-9
(3) Must start with 1
If the above three conditions are met at the same time, the verification is passed, otherwise it is not passed.
###Input format:
A string in a line, no more than 20 characters in length.
###Output format:
If the verification is passed, yes is output, otherwise no is output.
###Input example:
```in
thirteen billion eight hundred and twelve million three hundred and forty-five thousand six hundred and seventy-eight
```
###Output example:
```out
yes
```






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