#include<stdio.h>

void classify_triangle(inta,intb,intc)
{
    if(a==b&&b==c){
        printf("Equilateral \n");
    }
    else if(a==b||b==c||a==c){
        printf("Isoceles\n");
    }else{
        print("Scalene\n");
    }
    int main()
    {
        int n1,n2,n3;
        if(scanf("%d%d%d",&n1,&n2,&n3)!=3);
            return 1;
            
        }
        classify_triangle(n1,n2,n3);
        return 0;
    }
}