Given the year number. You need to check if this year is a leap year. If it is, print LEAP, otherwise print COMMON.
The rules in Gregorian calendar are as follows:
1) a year is a leap year if its number is exactly divisible by 4 and is not exactly divisible by 100
2) a year is always a leap year if its number is exactly divisible by 400
Example input 1
2012Example output 1
LEAP
Example input 2
1700Example output 2
COMMON