In college, many grades are converted into Grade Point Average (GPA) as a reference for further studies.
For each course, the GPA conversion rule is as follows:
| Rank | Basic GPA | Adjustment | Adjustment GPA | |
| A | 4.0 | + | +0.3 | |
| B | 3.0 | 0 | 0.0 | |
| C | 2.0 | - | -0.3 | |
| D | 1.0 |
The total GPA is the sum of Basic GPA and Adjustment GPA.
Given the rank and adjustment, can you calculate the corresponding GPA?
Rank and Adjustment separated by a space
The corresponding GPA with one digit after the decimal point.
If the GPA is 4.0, you must print 4.0.
4 or 4.00 is incorrect.
Also, if the GPA is 3.7, you must print 3.7, too.
| No. | Testdata Range | Score |
|---|---|---|
| 1 | 0~11 | 100 |
| No. | Time Limit (ms) | Memory Limit (KiB) | Output Limit (KiB) | Subtasks |
|---|---|---|---|---|
| 0 | 1000 | 65536 | 65536 | |
| 1 | 1000 | 65536 | 65536 | |
| 2 | 1000 | 65536 | 65536 | |
| 3 | 1000 | 65536 | 65536 | |
| 4 | 1000 | 65536 | 65536 | |
| 5 | 1000 | 65536 | 65536 | |
| 6 | 1000 | 65536 | 65536 | |
| 7 | 1000 | 65536 | 65536 | |
| 8 | 1000 | 65536 | 65536 | |
| 9 | 1000 | 65536 | 65536 | |
| 10 | 1000 | 65536 | 65536 | |
| 11 | 1000 | 65536 | 65536 |