def is_second_string_rotated_of_first_string(str1, str2):
if len(str1) != len(str2):
return False
concatenated = str1 + str1
return str2 in concatenated
first = "abcdefg"
second = "cdefgab"
print("yes" if is_second_string_rotated_of_first_string(first, second) else "no")
'''
run:
yes
'''