#include<stdio.h>
int main()
{
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    if(a <= 0 || b <= 0|| c <= 0){
        printf("Invalid input");
    }
    else if (a == b && b == c){
        printf("Equaliateral");
    }
    else if (a == b || b ==c ||a == c){
        printf("Ispsceles");
        else{
            printf("Scalene");
        }
        return 0;
    }