taille = int(input())
age = int(input())
poids = int(input())
cheval = int(input())
brun = int(input())
prob = 0

crit1 = (taille >= 178 and taille <= 182)
crit2 = (age >= 34)
crit3 = (poids < 70)
crit4 = (cheval == 0)
crit5 = (brun == 1)

if crit1:
	prob +=1
if crit2:
   prob +=1
if crit3:
   prob +=1
if crit4:
   prob +=1
if crit5:
   prob +=1

if prob == 5:
	print("Très probable")
elif prob == 4 or prob == 3:
	print("Probable")
elif prob == 2 or prob == 1:
	print("Peu probable")
else:
	print("Impossible")