num = 1 / 3.0

print('%e' % num)

print('%4.2f' % num)

print(repr('spam'))
print(str('spam'))

print(3/2)
print(3//2)
print(3//2.8)
print(10/4)

import math
print(math.floor(2.5))
print(math.floor(-2.5))
print(math.trunc(2.5))
print(math.trunc(-2.5))

print()

print(5 / -2)
print(5 // -2)
print(math.trunc(5 / -2))