You have trouble remembering which type of triangle is which. You write a program to help. Your program reads in three angles (in degrees).

• If all three angles are 60, output Equilateral.
• If the three angles add up to 180 and exactly two of the angles are the same, output Isosceles.
• If the three angles add up to 180 and no two angles are the same, output Scalene.
• If the three angles do not add up to 180, output Error.

Input Specification

The input consists of three integers, each on a separate line. Each integer will be greater than 0 and less than 180.

Output Specification

Exactly one of Equilateral, Isosceles, Scalene or Error will be printed on one line.

Sample Input 1

60
70
50

Output for Sample Input 1

Scalene

Sample Input 2

60
75
55

Output for Sample Input 2

Error