write a python code to print the common elements in between two given sets.
set1 = {1, 2, 3, 4, 5, 6, 7}
set2 = {2, 4, 5, 6}
def common_elements(set1, set2): 
    return set1 & set2

print(common_elements({1,2,3,4,5,6,7}, {2,4,5,6}))