Calendar calculations

[frequency]

import time
from datetime import date, timedelta
INPUTED_DATE=input()

while INPUTED_DATE!="END" and INPUTED_DATE!="end":
  new_date=INPUTED_DATE[:2]+INPUTED_DATE[3:5]+INPUTED_DATE[6:]
  #print (new_date)
  t=time.strptime(new_date,'%d%m%Y')
  formated_date=date(t.tm_year,t.tm_mon,t.tm_mday)+timedelta(1)
  print (formated_date.strftime('%d-%m-%Y'))
  INPUTED_DATE=input()

Done!