# 1043 triangle
a, b, c = map(float,input().split())
if a+b > c and b+c > a and a+c > b:
peri = a+b+c
print("Perimetro = {:.1f}".format(peri))
else:
area = ((a+b)/2) *c
print("Area = {:.1f}".format(area))//uri problem 1041 || coordinates of a point in python 3.9
inp = input()
x, y = inp.split()
x = float(x)
y = float(y)
if x == 0 and y ==0:
print("Origem")
elif(x==0):
print("Eixo Y")
elif(y==0):
print("Eixo X")
elif x > 0 and y > 0:
print("Q1")
elif x < 0 and y > 0:
print("Q2")
elif x < 0 and y < 0:
print("Q3")
elif x > 0 and y < 0:
print("Q4")#uri 1042 solution || simple sort
x, y, z = map(int,input().split())
arr = [x,y,z]
arr.sort()
print(f"{arr[0]}\n{arr[1]}\n{arr[2]}")
print(f"\n{x}\n{y}\n{z}")