list1 = ['a', 'b', 'c']
list2 = [1, 2, 3]
combined_list = [(x, y) for x in list1 for y in list2]
print(combined_list) # Output: [('a', 1), ('a', 2), ('a', 3), ('b', 1), ('b', 2), ('b', 3), ('c', 1), ('c', 2), ('c', 3)]