score = 72

if score >= 80:
    grade = "A"
elif score >= 70:
    grade = "B"
elif score >= 60:
    grade = "C"
else:
    grade = "F"

print(grade)

age = 20
has_ticket = True

if age >= 18:
    if has_ticket:
        print("เข้าได้")
    else:
        print("ต้องมีบัตร")
else:
    print("อายุต่ำกว่าเกณฑ์")

if age >= 18 and has_ticket:
    print("เข้าได้")

names = ["Ann", "Bob", "Cat"]

for name in names:
    print(name)

for number in range(1, 6):
    print(number)

count = 1

while count <= 5:
    print(count)
    count += 1

for number in range(1, 10):
    if number == 5:
        break
    print(number)

for number in range(1, 6):
    if number == 3:
        continue
    print(number)

scores = [80, 70, 90]
total = 0

for score in scores:
    total += score

average = total / len(scores)
print(average)