from __future__ import division
import random

def rand_numb():
    return(random.randint(1, 10) for i in range(2))

def operators():
    return \
    {'*': lambda x, y: x * y,
     '+': lambda x, y: x + y,
     '/': lambda x, y: x / y,
     '-': lambda x, y: x - y}

def calc_sum(fist,second,op,rand_op):
    return op[rand_op](first,second)

if __name__ == '__main__':
    op = operators()
    first,second = rand_numb()
    rand_op = random.choice(op.keys())
    calc_sum = calc_sum(first,second,op,rand_op)
    print '{} {} {} = {:.1f}'.format(first,rand_op,second,calc_sum)