import string
def next_letter(index):
letters = string.punctuation + string.ascii_lowercase + string.digits
return letters[index]
def main():
response = ""
index = 0
orders = "36,13,-9,-6,8,8,-4,-1,9,-18,-3,17,-10,11,-15,\
-23,21,12,-2,-30,18,22,-18,14,-4,-2,-8"
-23,21,12,-2,-30,18,22,-18,14,-4,-2,-8"
orderArray = orders.split(',')
for order in orderArray:
index = index + int(order)
response += next_letter(index)
print (response)
if __name__ == "__main__":
main()