m,n,t=map(int,input().split()) g=abs(m-n) if m+n<t or g>t: print("no") elif m==n==t: print("Equilateral Triangle") elif m==n or m==t or n==t: print("Isosceles Triangle") elif m**2+n**2==t**2 or m**2+t**2==n**2 or t**2+n**2==m**2: print("Right Triangle") else: print("Simple Triangle")