# 一年有多少秒
y = 365
d = 24
h = 60
m = 60
print(y*d*h*m)

# 一公里有多少毫米
k = 1000
m = 10
dm = 10
cm = 10
print(k*m*dm*cm)

# 给x赋值2,然后计算
x = 2
end = x*2
print(end)
end2 = 6* (x/7)
print(end2)
end3 = 6/ (4+5*x)
print(end3)


