# What type of triangle?

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Determine the type of a triangle (equilateral, isosceles, or scalene) based on the given side lengths.

## Input

One line contains $3$ integers, representing the lengths of the triangle's sides. The side lengths do not exceed $100$.

## Output

Print $1$ if the triangle is equilateral, $2$ if it is isosceles, and $3$ if it is scalene.

## Examples

Input #1

Answer #1

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