#include<stdio.h>
int main(){
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    if(a<=0;b<=0;c<=0){
        printf("Invaild 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("Scalene \n");
    }
    return 0;
}