# Define a procedure, find_second, that takes
# two strings as its inputs: a search string
# and a target string. It should return a
# number that is the position of the second
# occurrence of the target string in the
# search string.


def find_second(x,y):
    return x.find(y, (x.find(y)) + 1)




danton = "De l'audace, encore de l'audace, toujours de l'audace"
print (find_second(danton, 'audace'))
#>>> 25

twister = "00"
print (find_second(twister,'0'))
#>>> 13