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## 문제

The programming contest named Concours de Programmation Comtemporaine Interuniversitaire (CPCI) has a judging system similar to that of ICPC; contestants have to submit correct outputs for two different inputs to be accepted as a correct solution. Each of the submissions should include the program that generated the output. A pair of submissions is judged to be a correct solution when, in addition to the correctness of the outputs, they include an identical program.

Many contestants, however, do not stop including a different version of their programs in their second submissions, after modifying a single string literal in their programs representing the input file name, attempting to process different input. The organizers of CPCI are exploring the possibility of showing a special error message for such close submissions, indicating contestants what's wrong with such submissions. Your task is to detect such close submissions.

## 입력

The input consists of at most 100 datasets, each in the following format.

s1
s2


Each of s1 and s2 is a string written in a line, with the length between 1 and 200, inclusive. They are the first and the second submitted programs respectively. A program consists of lowercase letters (ab, ..., z), uppercase letters (AB, ..., Z), digits (01, ..., 9), double quotes ("), and semicolons (;). When double quotes occur in a program, there are always even number of them.

The end of the input is indicated by a line containing one ‘.’ (period).

## 출력

For each dataset, print the judge result in a line.

If the given two programs are identical, print IDENTICAL. If two programs differ with only one corresponding string literal, print CLOSE. Otherwise, print DIFFERENT. A string literal is a possibly empty sequence of characters between an odd-numbered occurrence of a double quote and the next occurrence of a double quote.

## 예제 입력 1

print"hello";print123
print"hello";print123
""""""""
"""42"""""
slow"program"
fast"code"
"super"fast"program"
"super"faster"program"
X""
X
I"S""CREAM"
I"CE""CREAM"
11"22"11
1"33"111
.


## 예제 출력 1

IDENTICAL
CLOSE
DIFFERENT
CLOSE
DIFFERENT
DIFFERENT
DIFFERENT
CLOSE
DIFFERENT