dieren = ["kat", "hond", "konijn", "vis", "hamster"]
print(dieren[2])

dieren = ["kat", "hond", "konijn", "vis", "hamster"]
print(dieren[-1])

dieren = ["kat", "hond", "konijn", "vis", "hamster"]
print(dieren[1:3])

dieren = ["kat", "hond", "konijn", "vis", "hamster"]
print(dieren[:2])

dieren = ["kat", "hond", "konijn", "vis", "hamster"]
print(len(dieren))

groep1 = ["kat", "hond"]
groep2 = ["vis", "hamster"]
print(groep1 + groep2)

getallen = [9, 2, 7, 4, 1]
getallen.sort()
getallen.remove(2)
getallen.append(10)
getallen.pop()
print(getallen)

rgb = (250, 128, 0)
print(rgb[1])

getallen = list(range(3, 15, 4))
print(getallen)

woord = "computer"
print(woord[3])

woord = "computer"
print(woord[2:5])

deel1 = "wereld"
deel2 = "wijd"
print(deel1 + deel2)

tekst = "Ik hou van kattenn"
print(tekst.replace("kattenn", "honden"))

zin = "Python is leuk om te leren"
print(zin.split())

a = 15
b = 9
print(a >= b)

taal = "NEDERLANDS"
print(taal == "nederlands")

klas = ["Sam", "Noor", "Ali", "Zoe"]
print("Ali" in klas)

klas = ["Sam", "Noor", "Ali", "Zoe"]
print("Mo" not in klas)

leeftijd = 16
lengte = 170
print(leeftijd >= 12 and lengte > 180)

leeftijd = 16
lengte = 170
print(leeftijd >= 18 or lengte > 150)

klaar = False
print(not klaar)

a = 5
b = 12
print(a < 10 and b < 10 or a == 5)

score = 10
score += 5
score *= 2
print(score)

print(17 / 4)
print(17 // 4)
print(17 % 4)

print(2 + 3 * 4 ** 2)

import math
print(math.sqrt(81))
print(math.pi)

from math import sqrt, pi
print(sqrt(49), pi > 3)