#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a+b>c||a+c>b||b+c>a){ if(a=b||b==c||a==c){ if(a==b&&a==c){ cout<<"Equilateral Triangle"<<endl; } else{ cout<<"Isosceles Triangle"<<endl; } } } else{ cout<<"No"<<endl; } return 0; }