#include<stdio.h>
void determineTriangleType(long long a,long long b, long long c)
{
    if (a <= 0||b <= 0||c <= 0)
    {
        printf("Invalid Input\n");
    }
    else if (a + b <= c||a + c <= b||b + c <= a)
    {
        printf("Invalid Input\n");
    }
    else if (a == b && b == c)
    {
        printf("Equilateral\n");
    }
    else if(a == b||b == c||a == c)
    {
        printf("Isoceles\n");
    }
    else
    {
        printf("Scalene\n");
    }

}