Split string into 160-character chunks while adding text to each part

[SheeppOSU]

This is the code I used.

message = 'As a reminder, you have an appointment with Dr. Smith tomorrow at 3:30 pm. If you are unable to make this appointment, please call our customer service line at least 1 hour before your scheduled appointment time.'

count = 0
num = 0
output = ('', '', '', '', '', '', '', '', '')

for i in message:
    count += 1
    if count < 161:
        outputStr = output[num] + i
        ouput[num] = outputStr
    else:
        num += 1
        outputStr = output[num] + i
        output[num] = outputStr
        count = 0

messsageNum = 0

for x in output:
    if x != '':
        messageNum += 1
        print(f'message number {messageNum} is {x} and has a length of {len(x) character}')
        print('')