import sys
from enum import Enum
 
class TringleSideTypes (Enum) :
	Invalid = 0
	Equilateral = 1
	Isosceles = 2
	Scalene = 3
 
class TringleAngleTypes (Enum) :
	Invalid = 0
	Right = 1
	Obtuse = 2
	Acute = 3
 
def tringleType(a, b, c) :
	if c<a :
		(a, c) = (c, a)
	if c<b :
		(c, b) = (b, c)
	if b<a :
		(b, a) = (a, b)
 
	sideResult = TringleSideTypes.Invalid
	angleResult = TringleAngleTypes.Invalid
	if c >= a + b :
		return sideResult, angleResult
 
	epsilon = abs(b) * 2*sys.float_info.epsilon
	if abs(a-b)<epsilon or abs(c-b)<epsilon :
		sideResult = TringleSideTypes.Isosceles
		if abs(a-c)<=epsilon :
			sideResult = TringleSideTypes.Equilateral
			angleResult = TringleAngleTypes.Acute
			return sideResult, angleResult
	else :
		sideResult = TringleSideTypes.Scalene
 
	pitagoras = a*a + b*b - c*c
	epsilon = c*c * 6*sys.float_info.epsilon
	if abs(pitagoras)<=epsilon :
		angleResult = TringleAngleTypes.Right
	else :
		angleResult = (pitagoras>0) and TringleAngleTypes.Acute or TringleAngleTypes.Obtuse
 
	return sideResult, angleResult
 
for data in sys.stdin:
	data = data.split()
	a = float(data[0])
	b = float(data[1])
	c = float(data[2])
	result = tringleType(a, b, c)
	print(a, b, c, result[0], result[1])
 

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4 5 3
0.5 0.4 0.3
1.0 0.4 0.55
3.0 3.0 3.0
5 3 5
7 7 13
7 7.1 13