PROGRAMMING:Judge leap year
Please write a program to judge whether a year is a leap year when it is entered. When n is a leap year, output intermediate year, otherwise output common year.
Tip: 1700 is not a leap year
###Input format:
There is only one positive integer n
###Output format:
Output as required.
###Input example:
```in
two thousand and eight
```
###Output example:
```out
Intercalary year
```
answer：If there is no answer, please comment
Tip: 1700 is not a leap year
###Input format:
There is only one positive integer n
###Output format:
Output as required.
###Input example:
```in
two thousand and eight
```
###Output example:
```out
Intercalary year
```
answer：If there is no answer, please comment