While doing registrations, the co-ordinators of CODEBETA are assigning a TEAM ID to each participants.
A TEAM ID is considered lucky if the sum of the first half of the digits is equal to the sum of the second half.
Given a TEAM ID t, determine if it's lucky or not.
NOTE : Team id always contains even number of digits'
INPUT :
FIRST line of input contains number of test cases n.
Next n lines contains Team id 't'.
OUTPUT :
Print 'lucky' if TEAM ID is lucky according to above condition otherwise print 'unlucky'.
INPUT CONSTRAINTS :
1 <= n <= 100
1 <=t <= 10^8
First line contains number of TEAM IDs i.e. 3
For ID 239017 sum of first half is 2+3+9 = 14 and sum of other half is 0+1+7=8, so it is unlucky as 14 is not equal to 8.
For ID 999999 sum of first half is 9+9+9 = 27 and sum of other half is 9+9+9=27, so it is lucky as 27 is equal to 27.
For ID 1230 sum of first half is 1+2 = 3 and sum of other half is 3+0 = 3, so it is lucky as 3 is equal to 3.
