10797: ABC146 - A - Can't Wait for Holiday
[Creator : ]
Description
Given is a string $S$ representing the day of the week today.
$S$ is SUN, MON, TUE, WED, THU, FRI, or SAT, for Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday, respectively.
After how many days is the next Sunday (tomorrow or later)?
Input
Input is given from Standard Input in the following format:
```
$S$
```
```
$S$
```
Output
Print the number of days before the next Sunday.
Constraints
$S$ is
SUN, MON, TUE, WED, THU, FRI, or SAT. Sample 1 Input
SAT
Sample 1 Output
1
It is Saturday today, and tomorrow will be Sunday.
Sample 2 Input
SUN
Sample 2 Output
7
It is Sunday today, and seven days later, it will be Sunday again.