print(-1)
print(0)
print(1) # int
print (1.1) # float
print('1+1',1+1)
print('2-1',2-1)
print('2*2',2*2)
print('4/2',4/2)

import math
print('math.sqrt(4)',math.sqrt(4))
print('math.pow(4,2)',math.pow(4,2))

import random
print('random.random()',random.random())