#include<cstdio> using namespace std; int main(){ int n,m,b; scanf("%d%d%d",&n,&m,&b); if((n+m>b)&&(n-m>b)){ if(n*n==m*m+b*b||m*m==n*n+b*b||b*b==n*n+m*m){ printf("Right Triangle"); }else if(n==m&&m==b){ printf("Equilateral Triangle"); }else if(n==m||m==b||n==b){ printf("Isosceles Triangle"); }else{ printf("Simple Triangle"); } }else{ printf("NO"); } return 0; }