PROGRAMMING:Is it equal

Give two strings, judge whether the two strings are equal.
###Input format:
The first line gives the first string, and the second line gives the second string.
Ensure that the two strings contain only uppercase and lowercase letters, and that the length of both strings does not exceed $$1000000 $.
###Output format:
If the two strings are equal, output "yes" on one line, otherwise output "no".
###Input example:
```in
Keventxdy
zwgtxdy
```
###Output example:
```out
No
```
###Input example:
```in
Keventxdy
Keventxdy
```
###Output example:
```out
Yes
```






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