Problem A
Above Sea Level
                                                                                    
  As a GPS hobbyist, you are interested in looking at how a database of altitude recordings will change to account for sea level rise. For your projections, you will assume that between now and $2050$, the sea level will rise by $30$ centimeters. Your input will be a single altitude entry from a database of geolocations (given in meters). You need to output what that altitude will be in $2050$, modified by your sea level rise projection.
Input
A single real number $-100\, 000 \leq N \leq 100\, 000$, representing a single altitude entry. The number contains at most $4$ digits after the decimal point.
Output
Print the predicted altitude in $2050$. Your output must be within $0.001$ of the correct answer to be accepted.
| Sample Input 1 | Sample Output 1 | 
|---|---|
| 150.5 | 150.2 | 
| Sample Input 2 | Sample Output 2 | 
|---|---|
| 60580.6373 | 60580.3373 | 
| Sample Input 3 | Sample Output 3 | 
|---|---|
| -475.1901 | -475.4901 | 
 
      