mayank-and-strings

Bob is learing string manipulation. Today his teacher  gives him  a  string of characters strictly between 'a'-'z' and asks him whether the given string is good or not.
A string is said to be good if the number of pairs of consecutive letters having positive  difference  less than or equal to 5 is four or more.

input 
It consist of an integer  t and  the next t lines each contains string having elements strictly between  'a'-'z'.  

output 
print "good" without quotes if the condition is true
print "not good" without quotes if the condition is false

Constraints
1 ≤ t ≤ 10
1 ≤ N ≤ 10^5

SAMPLE INPUT
3
abd
azbpq
abcdfg

SAMPLE OUTPUT
not good
not good
good

Source: hackerearth | Difficulty: UNKNOWN_DIFFICULTY


Solutions: