PROGRAMMING:Ming's secret message
Ming sent some text to John, but John couldn't understand it. ming said just pay attention to the capital letters and you'll understand it. Can you help John with that?
### input format:
some text
### output format:
The secret message
### input sample:
```in
haha, Hsdg gs E kdg Ls L sdf.Okk?
```
### output sample:
```out
HELLO
```
answer：If there is no answer, please comment
### input format:
some text
### output format:
The secret message
### input sample:
```in
haha, Hsdg gs E kdg Ls L sdf.Okk?
```
### output sample:
```out
HELLO
```
answer：If there is no answer, please comment