count = 0
n = input()
while n != '0':
if len(n) == 2 and n[-1] == '3':
count += 1
print(count)
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
count = 0
n = input()
while n != '0':
if len(n) == 2 and n[-1] == '3':
count += 1
n = input()
print(count)