162. Triangle Type
EasyGeometry
Given three side lengths, print INVALID if they cannot form a triangle; otherwise print EQUILATERAL, ISOSCELES or SCALENE.
Input format
A single line: a b c
Output format
One of the four words.
Example 1
Input
3 3 3
Output
EQUILATERAL
Example 2
Input
3 4 5
Output
SCALENE
Constraints
1 ≤ a, b, c ≤ 10⁹
Read input from standard input and print the answer to standard output. Your code is judged against 5 test cases, most of them hidden.
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