Simple dice roller (Python 3)

dice

import random

num = int(201)

rolls = {}
for k in range(2, 13):
        rolls[k] = 0

for k in range(num):
        first = random.randint(1, 6)
        second = random.randint(1, 6)
        rolls[first+second]+=1

for k in rolls:
        print(k, rolls[k])