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