PROGRAMMING:Finding the spherical distance between any two points on the latitude line
It is known that the average radius of the earth is 6371.393km, and the latitude and longitude values (in degrees) of two points at the same latitude are known. The program is written to calculate the chord length and spherical distance between the two points. All real numbers are required to use double type, and the approximate value of PI is 3.141592653589793.
It is suggested that north latitude and south latitude, east longitude and west longitude can be distinguished by positive and negative. That is, the north latitude is positive and the south latitude is negative; East longitude is positive and west longitude is negative.
###Input format:
In the first line, enter a real number representing latitude in the interval [- 90,90]; In the second line, enter two real numbers representing longitude in the interval [- 180180], separated by spaces.
###Output format:
Output chord length and spherical distance, keep 3 decimal places, separated by spaces, and finally wrap.
###Input example:
```in
thirty-two point six
-56.1 163.8
```
###Output example:
```out
10090.980 11645.760
```
answer：If there is no answer, please comment
It is suggested that north latitude and south latitude, east longitude and west longitude can be distinguished by positive and negative. That is, the north latitude is positive and the south latitude is negative; East longitude is positive and west longitude is negative.
###Input format:
In the first line, enter a real number representing latitude in the interval [- 90,90]; In the second line, enter two real numbers representing longitude in the interval [- 180180], separated by spaces.
###Output format:
Output chord length and spherical distance, keep 3 decimal places, separated by spaces, and finally wrap.
###Input example:
```in
thirty-two point six
-56.1 163.8
```
###Output example:
```out
10090.980 11645.760
```
answer：If there is no answer, please comment