Triangle Type

Read three side lengths of a triangle.

If the sides form a valid triangle, print whether it is:

• Equilátero if all three sides are equal
• Isósceles if two sides are equal
• Escaleno if all sides are different

Use nested if statements.

A triangle is valid if the sum of any two sides is greater than the third side.

Input

Three integers separated by spaces.

Output

Print one of these messages:

• Equilátero
• Isósceles
• Escaleno

Examples

Input:

3 3 3

Output:

Equilátero