year = 2018
month = 12
day = 8
hour = 12
minute = 20
second = 10

print(year, month, day, sep='/', end=' ')
print(hour, minute, second, sep=':')

korean = 94
english = 91
mathematics = 89
science = 83

average = (korean + english + mathematics + science) / 4
print(average)

print(10 /2)

a = 5
b = 2
a %= b
print(a)

