407179: GYM102697 150 Valid Triangle

Memory Limit:256 MB Time Limit:1 S
Judge Style:Text Compare Creator:
Submit:0 Solved:0

Description

150. Valid Triangletime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard output

Your task for this problem is to take the three side lengths of a triangle and to determine if these side lengths could create a "valid" triangle. A triangle is considered valid if the addition of any two side lengths is less than the length of the other side, in other words, the following must evaluate to true: a+b>c, a+c>b, b+c>a.

Input

The first line contains three space separated integers that correspond to the lengths of sides a, b, and c respectively.

Output

Output either "VALID" or "INVALID" depending on if the provided side lengths create a valid or invalid triangle.

ExamplesInput
1 5 1
Output
INVALID
Input
4 5 6
Output
VALID

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