random, strings and intergers in python

Write python program that generates 3 random numbers between 1 and 10 one hundred times. The program should display each set of 3 numbers on a new line separated by commas. An example output should be formatted as follows:

Number set 1 is: 10,7,8
Number set 2 is: 4,6,5
Number set 100 is: 7,3,1

I need help displayig it correctly. 3 random numbers 100 times.

import random

mylist = [random.randint(1,11) for r in range(100)]
x = random.sample(mylist,3)
for i in range(100):
    print('Number set', i + 1, 'is', x)