PROGRAMMING:Data comparison

Implementation of a program, the user input four values (integer or floating point). First calculate the average of the first three numbers, and then compare the average with the fourth number. If it is equal, the program will output "equal" on the screen, if the average value is greater than the fourth number, it will output "larger", otherwise it will output "smaller".
###Input format:
Enter four values
###Output format:
Output "equal" or "larger" or "smaller"
###Input example:
Here is a set of inputs. For example:
```in
four point five
three
three
three point five
```
###Output example:
The corresponding output is given here. For example:
```out
Equal
```







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