number = 12 months = ['Jan','Feb','March','Apr','May','Jun','July','Aug','Sep','Oct','Nov','Dec'] days = ['31','28','31','30','31','30','31','31','30','31','30','31'] if number < 1 or number > 12: print("Please input again: ") else: for i in range(len(months)): if number == i: print('Number:',number,' ','With:',months[i-1],'and',days[i-1], 'days.') break if number == 12: print('Number:',number,' ','With:',months[11],'and',days[11], 'days.')